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Mason Thompson

Nationals Reinstate Mason Thompson From 60-Day IL

By Nick Deeds | July 5, 2025 at 5:51pm CDT

The Nationals announced this afternoon that they’ve activated right-hander Mason Thompson from the 60-day injured list. Right-hander Zach Brzykcy was optioned to Triple-A to make room for Thompson on the active roster, while right-hander Derek Law was transferred to the 60-day IL to create a 40-man roster spot for Thompson.

Thompson, 27, last pitched in the majors back in 2023. A third-round pick by the Padres back in 2016, he made his big league debut in San Diego during the 2021 season but made just four appearances with the team before being traded to the Nationals in exchange for veteran righty Daniel Hudson at the 2021 trade deadline. Since then, he’s pitched parts of three seasons in a Nationals uniform. He’s generally been a league average reliever during his time with Washington, posting a 4.57 ERA (91 ERA+) with a 4.43 FIP in his 100 1/3 innings of work for the club.

The righty was at his best in 2022, when he posted a sterling 2.92 ERA in 24 2/3 innings of work. With that being said, that dominant performance came across a sample of just 24 2/3 innings of work and saw him post a strikeout rate of just 14.9%. 2023 saw his strikeout rate creep back up to 18.3%, but his ground ball rate dropped from 53.3% to 50.6% as his ERA ballooned up to 5.50. He figured to once again be part of the Nationals bullpen mix last year despite those lackluster numbers, but he underwent Tommy John surgery last March and has been sidelined ever since. He began rehabbing in mid-June and was promoted to Triple-A earlier this week, where he made two scoreless appearances before rejoining the Nats.

Kyle Finnegan is locked in as the club’s closer, but the team has few other solid bullpen options and a strong performance from Thompson could allow him to work his way into the club’s late-inning mix going forward. Departing the roster to make room for Thompson is Brzykcy, who made his MLB debut last year and has a 7.40 ERA in 20 2/3 innings of work this year. He’ll remain as optionable depth at Triple-A for the Nats going forward. As for Law, the right-hander has been sidelined all season due to forearm inflammation. Things may have taken a turn for the worse recently, however, as MASN’s Mark Zuckerman writes that Law has been dogged by frequent setbacks throughout his rehab and is headed for an MRI exam to make sure the injury hasn’t worsened since he was initially placed on the shelf. Even if the MRI doesn’t reveal structural damage, Zuckerman writes that Law could still be sidelined for quite some time due to the issue.

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Transactions Washington Nationals Derek Law Mason Thompson Zach Brzykcy

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Nationals Sign Lucas Sims

By Darragh McDonald | February 19, 2025 at 2:05pm CDT

2:05pm: The deal is for $3MM, per Andrew Golden of The Washington Post.

10:03am: The Nationals made a late addition to their bullpen Wednesday, announcing the signing of right-hander Lucas Sims to a one-year contract. Righty Mason Thompson, who had Tommy John surgery last March, was placed on the 60-day injured list to open a spot on the 40-man roster. Sims is represented by TWC Sports.

Sims, 31 in May, has spent most of his career with the Reds but was traded to the Red Sox at last year’s deadline. That deal didn’t work out especially well for Boston, as they gave up prospect Ovis Portes in exchange, while Sims then posted a 6.43 earned run average over 15 appearances around a three-week absence for a lat strain.

The Nats are surely looking beyond that unfortunate finish to his 2024 campaign. From 2019 to 2021, Sims tossed 115 2/3 innings for Cincinnati with a 4.05 ERA. He had a huge 35.2% strikeout rate over those seasons, though he undercut that somewhat with his 10.1% walk rate and some long balls.

He had a 50.6% fly ball rate in that stretch, with league average usually falling in the 35-40% range. For a guy who played his home games in homer-friendly Great American Ball Park, that wasn’t ideal and perhaps masked his true talents. He had a 3.69 FIP and 3.15 SIERA in that time. However, he strangely had a 3.75 ERA at home in those seasons but a 4.34 mark on the road.

Since then, his results have been a bit less impressive. His 2022 was largely wiped out by back issues, which culminated in surgery to repair a herniated disc. He only made six appearances that year. He returned to have a healthy 2023, tossing 61 innings with a 3.10 ERA, but his strikeout rate dropped to 27.9%. That was still above average but a notable drop from his previous work. His walk rate also ticked way up to 15.1%. A tiny .212 batting average on balls in play seemed to help him that year, which is why he had a 4.37 FIP and 4.58 SIERA.

He then posted a 3.57 ERA with the Reds last year, though with his strikeout rate falling again to 26%. His walk rate improved to 13%, a drop from the prior year but still a few ticks above average. As mentioned, he was then dealt to the Red Sox and finished the year on a down note.

Sims is a risky bet given that inconsistency but it will presumably be a fairly modest investment on the heels of his 2024 season. If he can engineer a bounceback this year, it would turn into a nice buy-low move for the Nats.

Some observers expected Washington to have an aggressive winter, but that hasn’t really come to pass. The rebuilding club has graduated a number of young players to the majors in recent years but that hasn’t pushed them to slam on the gas pedal. They have made a few additions but mostly of the short-term variety. Nathaniel Lowe was acquired to play first base and can be controlled through 2026, though he could also be traded or non-tendered depending on how things go this year. The Nats also signed Trevor Williams and Shinnosuke Ogasawara to relatively modest two-year deals and gave one-year pacts to Michael Soroka, Josh Bell, Amed Rosario, Jorge López and Paul DeJong.

In the bullpen, López and Derek Law figure to be the veteran anchors. Apart from that, it’s fairly wide open. Colin Poche is in camp as a non-roster invitee and could give them a bit more experience. Guys like Jose A. Ferrer, Eduardo Salazar, Zach Brzykcy, Evan Reifert and Orlando Ribalta are on the 40-man but no one in that group has more than 66 innings of big league experience. If the Nats and Sims get a deal done, he can join Law, López and Poche as the experienced arms in the group.

If the Nats aren’t in contention at the deadline, all of those veteran arms would be logical trade candidates. Both Law and López are slated for free agency at season’s end. Assuming Sims is only talking about a one-year deal, that would be true of him as well. Poche’s service time count is at five years and 114 days, meaning he’s just 58 shy of the six years needed for automatic free agency. If he’s on the roster before the deadline, then he would be on pace for free agency at season’s end as well.

MassLive.com’s Chris Cotillo first reported that the Nats and Sims were closing in on a deal. Mark Zuckerman of MASNsports.com reported that Sims had arrived at Nats camp and was signing a major league contract.

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Transactions Washington Nationals Lucas Sims Mason Thompson

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Players Who Could Move To The 60-Day IL Once Spring Training Begins

By Darragh McDonald | February 3, 2025 at 11:59pm CDT

Most of the clubs in the league currently have a full 40-man roster, which means that just about every transaction requires a corresponding move these days. Some extra roster flexibility is on the way, however. The 60-day injured list goes away five days after the World Series but comes back when pitchers and catchers report to spring training.

Per R.J. Anderson of CBS Sports, most clubs have a report date of February 12th or 13th. The Cubs and Dodgers are a bit earlier than most, on the 9th and 11th, respectively. That’s due to the fact that those clubs are heading to Tokyo, with exhibition games in mid-March, followed by regular season games against each other on March 18th and 19th. All the other teams have Opening Day scheduled for March 27th.

It’s worth pointing out that the 60 days don’t start being counted until Opening Day. Although a team can transfer a player to the 60-day IL quite soon, they will likely only do so if they aren’t expecting the player back until end of May or later. A team also must have a full 40-man roster in order to move a player to the 60-day IL.

There are still plenty of free agents still out there, including big names like Alex Bregman and Pete Alonso, as well as Nick Pivetta, Andrew Heaney, David Robertson, Randal Grichuk, Kenley Jansen, Harrison Bader, Lance Lynn, Jose Quintana and many more. Perhaps the extra roster flexibility will spur some deals to come together in the next week or so. It could also increase the ability of some clubs to make waiver claims or small trades for players who have been designated for assignment.

Here are some players who are expected to miss some significant time and could find themselves transferred soon.

Angels: Robert Stephenson

Stephenson underwent a hybrid Tommy John surgery with internal brace in late April. Given the 14-plus months required to recovery from such a procedure, he’s not likely to be ready in the early parts of the 2025 season.

Astros: Cristian Javier, J.P. France, Bennett Sousa

Javier underwent Tommy John surgery in June and is targeting a return in the second half of 2025. France is recovering from shoulder surgery and hoping to return in July. Sousa’s timeline is less clear but he underwent surgery for thoracic outlet syndrome in April. Other possibilities include Luis Garcia and Lance McCullers Jr., who are expected to start the season on the IL but returning in April or May still seems possible.

Athletics: Luis Medina, Ken Waldichuk

Medina underwent Tommy John surgery in August and Waldichuk in May. Medina might miss the entire season while Waldichuk is likely to miss a few months at least.

Blue Jays: Angel Bastardo, Alek Manoah

The Jays grabbed Bastardo from the Red Sox in the Rule 5 draft in December, even though he had Tommy John surgery in June. Manoah also had Tommy John around that time and is hoping to be back by August.

Braves: Joe Jiménez

Jimenez had knee surgery in November with a timeline of eight to twelve months, so he might miss the entire season. Spencer Strider and Ronald Acuña Jr. are also possibilities, though those will be more borderline. Strider had internal brace surgery in April, so returning in May is somewhat possible. Acuña is recovering from a torn ACL last year and it’s possible he’ll miss the first month or so of the season. Given how important both of those players are, Atlanta probably won’t put them on the 60-day IL unless it’s 100% certain that they can’t come back in the first 60 days of the season.

Brewers: Robert Gasser

Gasser had Tommy John surgery in June and will be looking at a late 2025 return even in a best-case scenario.

Diamondbacks: Kyle Nelson

Nelson’s timeline is unclear, but he underwent surgery for thoracic outlet syndrome in May and missed the remainder of the 2024 season.

Dodgers: Gavin Stone, Brusdar Graterol, River Ryan, Kyle Hurt, Emmet Sheehan

Stone underwent shoulder surgery in October that will cause him to miss the entire year. Graterol also underwent shoulder surgery and isn’t expected back until the second half of 2025. Each of Ryan, Hurt and Sheehan required Tommy John surgery in 2024: Ryan in August, Hurt in July and Sheehan in May.

Guardians: Sam Hentges, David Fry, Shane Bieber, Trevor Stephan

Hentges required shoulder surgery in September, with an expected recovery timeline of 12 to 14 months. Fry underwent UCL surgery in November with a more fluid timeline. He won’t be able to throw at all in 2025 but could be cleared for designated hitter action six to eight months from that surgery. Bieber is perhaps a borderline case, as he underwent Tommy John surgery in April. Given his importance, the Guards may not transfer him to the 60-day IL until it’s assured that he won’t be back in the first 60 days of the season. Stephan underwent Tommy John surgery in March and perhaps has a chance to avoid the 60-day IL, depending on his progression.

Mariners: Matt Brash, Jackson Kowar

Brash underwent Tommy John surgery in May. Given the typical 14-month recovery timeline from that procedure, he would be looking at a midsummer return. However, it was reported in November that he’s ahead of schedule and could be back by the end of April. That’s an optimistic timeline but the Mariners will probably hold off moving him to the 60-day IL until the door is closed to an early return. Kowar underwent Tommy John in March, so an early return in 2025 is possible for him, depending on how his recovery is going.

Marlins: Braxton Garrett, Eury Pérez

Garrett just underwent UCL surgery last month and is going to miss the entire 2025 season. Pérez underwent Tommy John surgery in April of last year and will miss at least part of the beginning of the 2025 campaign.

Mets: Christian Scott

Scott required a Tommy John surgery and internal brace hybrid procedure in September and will likely miss the entire 2025 season.

Nationals: Josiah Gray, Mason Thompson

Gray required a Tommy John surgery and internal brace hybrid procedure in July, meaning he’ll miss most or perhaps all of the 2025 season. Thompson required Tommy John surgery in March, so he has a better chance to make an early-season return if his recovery is going well.

Orioles: Kyle Bradish, Tyler Wells

Bradish and Wells each required UCL surgery in June, so they’re both slated to miss the first half of the upcoming campaign.

Padres: Joe Musgrove

Musgrove had Tommy John surgery in October and will therefore miss the entire 2025 season. However, the Padres only have 36 guys on their 40-man roster at the moment, so they’ll need to fill those spots before moving Musgrove to the 60-day IL.

Pirates: Dauri Moreta

Moreta required UCL surgery in March, so an early-season return is possible if his rehab is going well, though he could end up on the 60-day if the club goes easy with his ramp-up or he suffers any kind of setback.

Rangers: Josh Sborz

Sborz underwent shoulder surgery in November and is expected to miss the first two to three months of the upcoming season.

Rays: Nate Lavender, Ha-Seong Kim

The Rays took Lavender from the Mets in the Rule 5 draft, even though he had Tommy John in May and will miss the start of the season. Kim’s status is more up in the air after he had shoulder surgery in October. Various reports have suggested he could return anywhere from April to July. The Rays made a sizable investment in Kim, their largest ever for a position player, so they probably won’t shelve him until they get more clarity on his status.

Red Sox: Patrick Sandoval, Garrett Whitlock, Chris Murphy

Sandoval had internal brace surgery in June of last year and should miss the first half of the season. Whitlock had the same surgery in May, so he could have a bit of a better chance to return in the first 60 days of the season. Murphy underwent a fully Tommy John surgery in April and will certainly miss the beginning of the upcoming season. Another possibility is Lucas Giolito, who had internal brace surgery in March, though he expects to be ready by Opening Day.

Reds: Julian Aguiar, Brandon Williamson

Aguiar underwent Tommy John surgery in October and Williamson in September, so both are likely slated to miss the entire 2025 season.

Tigers: Sawyer Gipson-Long

Gipson-Long underwent internal brace surgery in April. On top of that, he underwent left hip labral repair surgery in July, with the club hoping to address both issues at the same time. It seems likely that he’ll miss some of the early 2025 schedule, but his IL placement will depend on how he’s been progressing.

White Sox: Jesse Scholtens

Scholtens underwent Tommy John surgery in early March. Whether he goes on the 60-day IL or not will depend on how he’s progressed since then and when the White Sox expect him back.

Yankees: Jonathan Loáisiga

Loáisiga underwent internal brace surgery in April, so he could potentially be back on the mound early in the 2025 season. It was reported in December that the Yankees are expecting him to be in the bullpen by late April or early May, so he’ll only end up on the 60-day IL if he suffers a bit of a setback.

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Arizona Diamondbacks Atlanta Braves Baltimore Orioles Boston Red Sox Chicago White Sox Cincinnati Reds Cleveland Guardians Detroit Tigers Houston Astros Los Angeles Angels Los Angeles Dodgers MLBTR Originals Miami Marlins Milwaukee Brewers New York Mets New York Yankees Oakland Athletics Pittsburgh Pirates San Diego Padres Seattle Mariners Spring Training Tampa Bay Rays Texas Rangers Toronto Blue Jays Washington Nationals Alek Manoah Angel Bastardo Bennett Sousa Brandon Williamson Braxton Garrett Brusdar Graterol Chris Murphy Christian Scott Cristian Javier Dauri Moreta David Fry Emmet Sheehan Eury Perez Garrett Whitlock Gavin Stone Ha-Seong Kim J.P. France Jackson Kowar Jesse Scholtens Joe Jimenez Joe Musgrove Jonathan Loaisiga Josh Sborz Josiah Gray Julian Aguiar Ken Waldichuk Kyle Bradish Kyle Hurt Kyle Nelson Luis Medina Mason Thompson Matt Brash Nate Lavender Patrick Sandoval Red Sox River Ryan Robert Gasser Robert Stephenson Sam Hentges Sawyer Gipson-Long Shane Bieber Trevor Stephan Tyler Wells

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Nationals Avoid Arbitration With Mason Thompson

By Anthony Franco | November 21, 2024 at 9:59pm CDT

The Nationals announced they’ve avoided arbitration with reliever Mason Thompson. The team did not reveal salary terms. MLBTR contributor Matt Swartz had projected him for an $800K salary that is marginally above the $760K league minimum.

Thomspon, who turns 27 in February, underwent Tommy John surgery early in Spring Training. He obviously missed the entire season but could return relatively early in 2025. A former Padres draftee, Thompson went to the Nats at the 2021 deadline in the trade that sent veteran reliever Daniel Hudson to San Diego. Thompson made 102 appearances for Washington between 2021-23. He posted a 4.57 earned run average with a middling 17.8% strikeout rate.

This was the first of the righty’s three seasons of arbitration eligibility. Washington had a nine-player arbitration class before waiving Ildemaro Vargas. Catcher Riley Adams and relievers Derek Law and Tanner Rainey are potential non-tender candidates before tomorrow evening’s deadline.

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Transactions Washington Nationals Mason Thompson

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Nationals Select Eddie Rosario, Jesse Winker, Matt Barnes

By Nick Deeds | March 24, 2024 at 9:00am CDT

The Nationals announced this morning that they’ve selected the contracts of right-hander Matt Barnes, outfielder Eddie Rosario, and outfielder Jesse Winker. In corresponding moves, right-hander Mason Thompson and left-hander Jose A. Ferrer have been placed on the 60-day injured list. The club’s 40-man roster is now at capacity.

That Barnes made the roster is hardly a surprise. A veteran of ten major league seasons, the 33-year-old is coming off a down season with the Marlins that saw him struggle to a 5.48 despite a decent 4.15 FIP. Prior to his down 2023 campaign, however, Barnes had long been one of the more reliable late-inning relief arms in the game with the Red Sox. Barnes posted a 3.91 ERA with a 3.42 FIP from 2016 to 2022, striking out an excellent 31.3% of batters faced during that time while walking 11.3%. Those seven seasons saw the right-hander pick up 47 saves and 96 holds as a mainstay toward the back of the club’s bullpen. Barnes figures to receive another chance at a late-inning role in D.C. now that he’s made the team, where he’ll compete for high-leverage work with fellow veteran arms Hunter Harvey and Tanner Rainey ahead of closer Kyle Finnegan.

That both Rosario and Winker made the roster is somewhat more surprising. After all, both are defensively limited left-handed hitters who profile best as part of a platoon. That overlap didn’t deter the Nationals from rostering them both, however, and both outfielders certainly have a case to make the roster in isolation. Rosario has typically been a roughly average hitter throughout his career, as exemplified by him .255/.305/.450 with a wRC+ of exactly 100 in 142 games with the Braves last year. Those numbers are more or less in line with his career output of .268/.305/.460 (102 wRC+), though its worth noting that his career numbers are dragged down somewhat by a brutal 2022 season that saw him hit a paltry .212/.259/.328 while he battled vision problems. That issue appears to have been rectified by a laser eye procedure, however, and Rosario seems to be a good bet to produce average numbers as a regular in left field, even as his 23.6% strikeout rate last year is a far cry from the 16.5% figure he posted during his peak seasons with the Twins from 2017 to 2020.

As for Winker, the 30-year-old was among the more productive hitters in the league during his five-year tenure with the Reds, slashing an excellent .288/.385/.504 in 413 games from 2017-21, which included an All Star nod during the 2021 season. Winker was shipped to the Mariners ahead of the 2022 season, however, and took a step back at the plate during his time with the club as he hit a roughly league average .219/.344/.344 during his time with the club. Winker fell even further upon being traded to the Brewers prior to last year, as he struggled to a .199/.320/.247 slash line while battling neck injuries. While Winker doesn’t offer the same reliable production as Rosario, he could be the far more impactful bat if he can regain the form he enjoyed during his time with the Reds.

With young outfielders Alex Call and Jacob Young having been optioned to Triple-A last night and manager Davey Martinez telling reporters (including Spencer Nusbaum of the Washington Post) that Stone Garrett will begin the season on the injured list, however, the club clearly feels comfortable entering the season with an outfield mix that will prominently feature both Rosario and Winker. With Lane Thomas and Victor Robles entrenched as regular options in right and center field, respectively, Winker and Rosario will join first baseman Joey Gallo as left-handed hitters in the club’s lineup with Joey Meneses serving as a right-handed complement to all three. Assuming Gallo will be afforded regular at bats at first base, that would leave at least one of Rosario or Winker to remain in the lineup against left-handed hitters. Given Winker’s abysmal .205/.321/.338 slash line against southpaws, it seems likely that the bulk of starts against lefties will go to Rosario, at least until Garrett returns from the injured list.

That Ferrer and Thompson will start the season on the 60-day IL is hardly a surprise. Thompson is rehabbing Tommy John surgery while Ferrer is dealing with a back strain that Martinez (as relayed by Nusbaum) has indicated will keep him from throwing for another 4-6 weeks.

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Transactions Washington Nationals Eddie Rosario Jesse Winker Jose Ferrer Mason Thompson Matt Barnes Stone Garrett

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Mason Thompson To Undergo Tommy John Surgery

By Darragh McDonald | February 28, 2024 at 10:13am CDT

Nationals right-hander Mason Thompson will undergo Tommy John surgery on Friday, with Mark Zuckerman of MASNsports.com among those to relay the news. As noted by Zuckerman, this will be the second time the righty will be undergoing the procedure, with the first occurring when he was a high schooler.

A couple of weeks ago, it was reported that Thompson would be shut down due to an elbow injury. At that time, manager Dave Martinez confessed that the team was “a little concerned,” so they likely had some inkling that today’s news was possible.

It’s undoubtedly a frustrating setback for both Thompson and the team. The now-26-year-old came over to the Nationals from the Padres in the 2021 Daniel Hudson trade and now has 106 games of MLB experience under his belt between those two clubs. He has logged 103 1/3 innings, allowing 4.53 earned runs per nine. His 17.7% strikeout rate and 10% walk rate are both subpar, but his 51.1% ground ball rate is quite strong.

The Nats are rebuilding and will likely have plenty of innings available for young pitchers this year, allowing them to continue to develop while showcasing their abilities to the league. Unfortunately, Thompson won’t be able to take advantage of that opportunity. Since Tommy John rehab generally takes over a year, he’ll miss the entire 2024 season and perhaps the early portions of 2025 as well.

The club will have to pivot to other options with Thompson no longer in the mix for this year’s bullpen innings. They have given minor league deals to various veterans such as Derek Law, Matt Barnes, Richard Bleier, Luis Perdomo and Jacob Barnes.

The Nats will likely transfer Thompson to the 60-day injured list once they need his roster spot. If that comes to pass, he’ll spend the whole year there, receiving major league pay and service time. He would cross three years of service in that scenario and qualify for arbitration next winter, though missing the entire year will make him unlikely to receive a substantial raise. The Nats could also designate him for assignment, but injured players can’t be put on outright waivers, meaning he’d have to be put on release waivers. They could then try to re-sign him to a minor league deal but Thompson would be free to explore opportunities with other clubs.

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Washington Nationals Mason Thompson

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Rizzo: Nationals Unlikely To Make Additional Major League Signings This Offseason

By Steve Adams | February 14, 2024 at 3:36pm CDT

The bulk of the shopping in a quiet Nationals offseason looks to be complete. General manager Mike Rizzo told the team’s beat writers Wednesday the Nats aren’t likely to add any more free agents on guaranteed deals between now and Opening Day (X link via Andrew Golden of the Washington Post). It’s still possible that they’ll add some veterans on minor league deals with spring training invitations.

Rizzo’s comments seemingly close the door on any potential late additions of note to a Nationals club that has been poking around the starting pitching market. “I just couldn’t find that starting pitcher that was going to impact us at this time, for not only the right amount of years but the right salary at this time,” Rizzo said Wednesday (via MASNsports.com’s Mark Zuckerman).

The Nationals have only signed three players to big league deals this offseason — none for more than Joey Gallo’s $5MM (as can be seen in MLBTR’s Contract Tracker). Beyond Gallo, the Nats signed reliever Dylan Floro and infielder/outfielder Nick Senzel to one-year deals worth $2.3MM and $2MM, respectively. They’ve also added outfielder Jesse Winker, lefty Richard Bleier and first baseman/outfielder Juan Yepez on minor league pacts this winter.

As it stands, the Nationals will deploy a rotation including Patrick Corbin, Josiah Gray, MacKenzie Gore, Jake Irvin and Trevor Williams. That group combined to start all but 19 of Washington’s games in 2023 — Chad Kuhl, Joan Adon and Jackson Rutledge started the others — a season in which the Nationals ranked 25th in the Majors with a 5.02 ERA and 29th in each of FIP (5.30), SIERA (4.95) and K-BB% (9.7%).

The Nats are surely hoping for better performances from young starters like Gore and Gray, both of whom were lauded as top prospects prior to breaking into the big leagues. Both hurlers posted respectable ERAs with middling grades from fielding-independent metrics, in no small part due to sub-par walk rates and (in Gore’s case especially) struggles with the long ball. Gore is the only Nationals starter who posted an above-average strikeout rate in 2023 (26%). Corbin and Williams are the only two who had better-than-average walk rates (7.2% and 8%, respectively).

Washington also has several more arms on the rise, with the aforementioned Rutledge, lefty DJ Herz and right-hander Cade Cavalli among them. Cavalli would likely have been in the Nats’ rotation in 2023 were it not for a spring elbow injury that led to Tommy John surgery.

Rizzo didn’t provide much of an update on Cavalli beyond the fact that his rehab is progressing nicely. An early-summer return seems like a best-case scenario for the hard-throwing 25-year-old, and Zuckerman indeed notes that he’s shooting to be MLB-ready sometime in June.

Rutledge tossed 20 innings in last year’s debut after delivering solid run-prevention numbers between Double-A and Triple-A — albeit with sub-par command. Herz, acquired from the Cubs in exchange for Jeimer Candelario, posted a 3.43 ERA in 22 Double-A starts last year, fanning an impressive 32.4% of his opponents. He too struggled with command issues, however, walking opponents at a grim 13.9% clip.

On the bullpen front, the Nats could be down at least one candidate early in the season. Skipper Davey Martinez said Wednesday that righty Mason Thompson will be shut down for the next two weeks before being reevaluated for an elbow injury (X link via Golden). Martinez conceded that the team is “a little concerned” about the issue but declined to go into further details.

Thompson, 26 next week, has spent the majority of the past three seasons with the Nationals and pitched 100 1/3 innings of 4.57 ERA ball with a 17.8% strikeout rate, 10% walk rate and 50.6% ground-ball rate.

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Washington Nationals Cade Cavalli Mason Thompson

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Nationals Promote Jackson Rutledge

By Anthony Franco | September 13, 2023 at 2:30pm CDT

September 13: The Nats have now made it official, recalling Rutledge with righty Mason Thompson optioned in a corresponding move.

September 12: The Nationals are recalling pitching prospect Jackson Rutledge to make his major league debut tomorrow against the Pirates, skipper Dave Martinez told reporters (including Bobby Blanco of MASNsports.com). Grant Paulsen of 106.7 FM The Fan first reported Rutledge was en route to Pittsburgh this afternoon.

Rutledge, 24, was Washington’s first-round draftee back in 2019. A Texas junior college product, the 6’8″ righty has appeared among the Nats’ top 10 prospects at Baseball America entering each of the last four seasons. He’d been nagged by injury concerns early in his professional career but he has shown a promising raw arsenal.

As one might expect given his size, Rutledge has a mid-90s fastball and a mid-80s slider which BA suggests could be a plus offering. The outlet placed him seventh among Washington minor leaguers on their midseason update, writing that he has a chance to stick at the back of a major league rotation.

Rutledge has made 23 minor league starts this season, splitting the year almost evenly between the top two levels. He worked to a 3.16 ERA over 12 outings for Double-A Harrisburg before posting a 4.44 mark in 11 starts at Triple-A Rochester. Overall, he has allowed 3.71 earned runs per nine through 119 innings. His 21.3% strikeout rate and 11.1% walk percentage are both middling, but the results were solid enough for the Nats to give him an initial look.

Washington added Rutledge to the 40-man roster last winter to keep him out of the Rule 5 draft. They’ll need only to make an active roster transaction to accommodate his promotion tomorrow. He could take three or four starts down the stretch as he tries to put himself on the radar for a spot in next year’s starting staff.

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Washington Nationals Jackson Rutledge Mason Thompson

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Every Team’s Initial September Call-Ups

By Steve Adams and Anthony Franco | September 1, 2022 at 10:59pm CDT

Each season as the calendar flips to September, we see a flurry of transactions around Major League Baseball. Active roster sizes jump from 26 to 28 for the season’s final month, with teams permitted to bring up no more than one additional pitcher. We’ve already covered a host of transactions with 40-man roster implications throughout the day at MLBTR. Here’s a full round-up of teams’ initial September roster moves.

American League West

Houston Astros:

  • Selected contract of RHP Hunter Brown
  • Selected contract of C Yainer Diaz
  • Corresponding moves: IF Niko Goodrum and RHP Peter Solomon designated for assignment

Los Angeles Angels:

  • Selected contract of OF Ryan Aguilar
  • Selected contract of RHP Zack Weiss
  • Corresponding moves: OF Steven Duggar and INF Jose Rojas designated for assignment

Oakland Athletics

  • Selected contract of LHP Ken Waldichuk from Triple-A Las vegas
  • Recalled OF Cody Thomas from Triple-A Las Vegas
  • Corresponding move: RHP David McKay designated for assignment

Seattle Mariners

  • Reinstated LHP Matthew Boyd from 60-day injured list
  • Recalled OF Taylor Trammell from Triple-A Tacoma
  • Corresponding moves: None required

Texas Rangers

  • Selected contract of RHP Jesus Tinoco from Triple-A Round Rock
  • Recalled OF Nick Solak from Triple-A Round Rock
  • Corresponding move: Transferred RHP Josh Sborz to 60-day injured list

American League Central

Chicago White Sox

  • Recalled OF Adam Haseley from Triple-A Charlotte
  • Recalled RHP Matt Foster from Triple-A Charlotte
  • Corresponding move: None required

Cleveland Guardians

  • Recalled SS Ernie Clement from Triple-A Columbus
  • Reinstated RHP Cody Morris from 60-day injured list
  • Corresponding move: Designated RHP Anthony Castro for assignment

Detroit Tigers

  • Recalled 1B Spencer Torkelson from Triple-A Toledo
  • Selected contract of INF Ryan Kreidler from Triple-A Toledo
  • Corresponding move: Transferred RHP Rony Garcia to 60-day injured list

Kansas City Royals

  • Selected contract of RHP Daniel Mengden from Triple-A Omaha
  • Recalled OF Nate Eaton from Triple-A Omaha
  • Corresponding move: None required

Minnesota Twins

  • Added LHP Austin Davis (previously claimed off waivers from Red Sox) to active roster
  • Selected contract of OF Billy Hamilton from Triple-A St. Paul
  • Corresponding move: Transferred OF Trevor Larnach to 60-day injured list

American League East

Baltimore Orioles

  • Selected contract of 1B Jesus Aguilar from Triple-A Norfolk
  • Recalled LHP DL Hall from Triple-A Norfolk
  • Corresponding move: Designated INF Richie Martin for assignment

Boston Red Sox

  • Recalled C Connor Wong from Triple-A Worcester
  • Selected contract of RHP Eduard Bazardo
  • Corresponding moves: None required

New York Yankees

  • Recalled SS Oswald Peraza from Triple-A Scranton/Wilkes-Barre
  • Activated INF Marwin Gonzalez from paternity list
  • Corresponding moves: None required

Tampa Bay Rays

  • Reinstated RHP Matt Wisler from the 15-day injured list
  • Recalled INF Jonathan Aranda from Triple-A Durham
  • Corresponding moves: None required

Toronto Blue Jays

  • Recalled RHP Casey Lawrence from Triple-A Buffalo
  • Added OF Bradley Zimmer (claimed off waivers from Phillies this week) to active roster
  • Corresponding moves: None required

National League West

Arizona Diamondbacks

  • Selected contract of IF Wilmer Difo from Triple-A Reno
  • Reinstated RHP Keynan Middleton and LHP Kyle Nelson from 15-day injured list
  • Corresponding move: Designated RHP Noe Ramirez for assignment

Colorado Rockies

  • Recalled INF Alan Trejo from Triple-A Albuquerque
  • Recalled RHP Chad Smith from Triple-A Albuquerque
  • Corresponding moves: None required

Los Angeles Dodgers

  • Reinstated LHP Clayton Kershaw from 15-day injured list
  • Recalled 3B Miguel Vargas from Triple-A Oklahoma City
  • Corresponding moves: None required

San Diego Padres

  • Recalled INF Matt Beaty from Triple-A El Paso
  • Recalled RHP Reiss Knehr from Triple-A El Paso
  • Corresponding moves: None required

San Francisco Giants

  • Selected contract of recently-acquired OF Lewis Brinson
  • Recalled IF David Villar from Triple-A Sacramento
  • Corresponding move: Outrighted LHP Jonathan Bermudez to Triple-A Sacramento

National League Central

Chicago Cubs

  • Selected contract of RHP Jeremiah Estrada from Triple-A Iowa
  • Recalled INF David Bote from Triple-A Iowa
  • Corresponding move: Transferred Wade Miley from 15-day injured list to 60-day injured list

Cincinnati Reds

  • Selected contract of 2B/3B Spencer Steer
  • Selected contract of RHP Fernando Cruz
  • Corresponding moves: Transferred INF Mike Moustakas and RHP Jeff Hoffman from 10-day injured list to 60-day injured list

Milwaukee Brewers

  • Recalled RHP Luis Perdomo from Triple-A Nashville
  • Recalled OF Esteury Ruiz from Triple-A Nashville
  • Corresponding moves: None required

Pittsburgh Pirates

  • Recalled RHP Johan Oviedo from Triple-A Indianapolis
  • Recalled OF Calvin Mitchell from Triple-A Indianapolis
  • Corresponding moves: None required

St. Louis Cardinals

  • Selected contract of OF Ben DeLuzio from Triple-A Memphis
  • Recalled RHP James Naile from Triple-A Memphis
  • Corresponding moves: None required

National League East

Atlanta Braves

  • Reinstated IF Orlando Arcia from 10-day injured list
  • Added recently-claimed RHP Jesse Chavez to active roster
  • Corresponding moves: None required

Miami Marlins*

  • To recall OF Bryan De La Cruz
  • To recall RHP Jeff Brigham
  • Corresponding moves: None required

New York Mets

  • Selected contract of INF Deven Marrero from Triple-A Syracuse
  • Recalled RHP Adonis Medina from Triple-A Syracuse
  • Corresponding move: Designated RHP Connor Grey for assignment

Philadelphia Phillies

  • Selected contract of RHP Vinny Nittoli from Triple-A Lehigh Valley
  • Recalled C Donny Sands from Triple-A Lehigh Valley
  • Corresponding moves: None required

Washington Nationals

  • Recalled C Tres Barrera from Triple-A Rochester
  • Recalled RHP Mason Thompson from Triple-A Rochester
  • Corresponding moves: None required

*Marlins moves reported by Jordan McPherson of the Miami Herald (Twitter link)

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Arizona Diamondbacks Atlanta Braves Baltimore Orioles Boston Red Sox Chicago Cubs Chicago White Sox Cincinnati Reds Cleveland Guardians Colorado Rockies Detroit Tigers Houston Astros Kansas City Royals Los Angeles Angels Los Angeles Dodgers Miami Marlins Milwaukee Brewers Minnesota Twins New York Mets New York Yankees Oakland Athletics Philadelphia Phillies Pittsburgh Pirates San Diego Padres San Francisco Giants Seattle Mariners St. Louis Cardinals Tampa Bay Rays Texas Rangers Toronto Blue Jays Transactions Washington Nationals Adam Haseley Alan Trejo Bradley Zimmer Bryan De La Cruz Cal Mitchell Casey Lawrence Chad Smith David Bote David Villar Donny Sands Ernie Clement Esteury Ruiz Jeff Brigham Jesse Chavez Johan Oviedo Jonathan Aranda Luis Perdomo Marwin Gonzalez Mason Thompson Matt Beaty Matt Boyd Matt Foster Matt Wisler Matthew Boyd Nate Eaton Orlando Arcia Reiss Knehr Rony Garcia Taylor Trammell Tres Barrera Vinny Nittoli Wade Miley

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Nationals Designate Sam Clay For Assignment

By Steve Adams | July 1, 2022 at 1:56pm CDT

The Nationals have designated left-hander Sam Clay for assignment, per a team announcement. His spot on the 26-man and 40-man roster will go to righty Mason Thompson, who has been reinstated from the 60-day injured list. Washington also optioned catcher Riley Adams to Triple-A Rochester and recalled fellow backstop Tres Barrera in his place.

Clay, 29, signed a big league deal with the Nats in the 2020-21 offseason despite never having pitched at the Major League level. The former Twins fourth-rounder had posted solid numbers between Double-A and Triple-A in 2019 before the canceled 2020 minor league season, with his enormous 71.2% ground-ball rate likely holding particular appeal for the Nats.

Unfortunately, things haven’t panned out as the Nationals or Clay himself hoped upon signing that deal. He made his big league debut in 2021 when he tossed 45 innings out of Davey Martinez’s bullpen, but Clay’s 5.60 ERA was one of many contributing factors to a disastrous Nationals season. Clay posted an excellent 60.1% grounder rate last year but also turned in a well below-average 15.9% strikeout rate and a fairly bloated 10.3% walk rate.

So far in 2022, things haven’t gone much better. While Clay has a solid 3.10 ERA, 21.7% strikeout rate, 7.6% walk rate and 64.5% ground-ball rate in 20 1/3 Triple-A frames, he’s again been ineffective against big leaguers. He’s pitched 4 1/3 innings for the Nats this season, yielding five runs on three hits and three walks as well as four hit batsmen in that time. That shaky performance has inflated his career ERA in the Majors to 6.02.

Clay has a decent track record in the upper minors, one minor league option remaining beyond this season, and a clear ability to induce grounders — all of which could conceivably hold some appeal to another club with different ideas about how to maximize his results. The Nats will have a week to trade him, pass him through outright waivers or release him.

Replacing Clay on the roster will be the 24-year-old Thompson — a hard-throwing, 6’7″ righty who came to the Nats last summer in the deadline deal that shipped reliever Daniel Hudson to the Padres. Thompson, a third-round pick by San Diego back in 2016, pitched just one scoreless inning this season before landing on the injured list with a biceps strain that has kept him out since.

He made his MLB debut last season, tossing 24 2/3 innings between the Padres and Nats. In that time, Thompson logged a 4.01 ERA with more questionable secondary marks, including a 19% strikeout rate and 12.4% walk rate. He sat at 96.3 mph with his sinker and kept 50% of the balls in play against him on the ground, however, and his slider is considered an above-average offering as well.

As for the swap behind the dish, Adams will head to Rochester and presumably receive the regular playing time that has eluded him behind fellow rookie Keibert Ruiz this season. The 26-year-old has appeared in 27 games and tallied just 88 plate appearances so far this season, batting .192/.284/.321 along the way. Adams has plenty of raw power and consistently high walk rates, but he only played in a total of 36 Triple-A games before being called to the Majors. The Nats apparently feel it’d be better for his development to get more consistent looks in Rochester than playing sparsely behind Ruiz.

The 27-year-old Barrera, meanwhile, was hitting .256/.342/.439 in Triple-A and has long projected as a possible backup catcher. The Nats selected him in the sixth round back in 2016, and he’ll now get another look in the big leagues. He appeared in 30 games last season and hit .264/.374/.385 through 107 plate appearances.

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Transactions Washington Nationals Mason Thompson Riley Adams Sam Clay Tres Barrera

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