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White Sox Release Omar Narvaez

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The White Sox released catcher Omar Narváez from his minor league deal, according to an announcement from their Triple-A affiliate. He’d signed one month ago, his second non-roster contract of the year with the Sox.

Narváez has played in 15 games for Triple-A Charlotte, where he’d paired with top prospect Kyle Teel. The veteran hit .218/.317/.345 with a pair of homers in 63 plate appearances. Narváez had a brief stint on the big league roster immediately after Korey Lee went down with an ankle sprain. He only appeared in four games before the team pivoted to prospect Edgar Quero. Narváez was waived, elected free agency, then returned on the aforementioned second minor league deal.

Lee has been on a rehab assignment with Charlotte since May 9. Teams can keep an injured position player on a rehab stint for up to 20 days. The Sox will need to activate him by next week at the latest. They’ll need to decide whether to keep him in Charlotte on an optional assignment or carry him on the MLB roster, likely at the expense of out-of-options backup Matt Thaiss.

They could also option Quero back out, but he’s holding his head above water in his first MLB action (.267/.357/.302 in 98 plate appearances). Keeping him in the majors allows both Quero and Teel to continue developing defensively with the respective lion’s shares of playing time at catcher in MLB and Triple-A.

Narváez figures to look for a minor league opportunity elsewhere. The 33-year-old has appeared in 10 big league seasons. He developed into a solid #1 catcher for the Mariners and Brewers midway through that run, though his production has tanked over the past few seasons. He owns a .201/.278/.286 slash line since the start of 2022.

Phillies Sign Lucas Sims To Minor League Deal

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6:21pm: Philadelphia also added righty Wil Crowe on a minor league contract and assigned him to Double-A Reading, as reflected on the MLB.com transaction log. A former Nationals draftee, Crowe owns a 5.30 ERA over parts of four MLB seasons. He spent last year in Korea with the Kia Tigers, putting up a 3.57 mark with 43 strikeouts across 40 1/3 innings.

6:02pm: The Phillies have signed right-hander Lucas Sims to a minor league deal, reports Matt Gelb of The Athletic. Gelb adds that Sims will initially report to the Phillies’ pitching lab in Florida. He’ll presumably head to Triple-A Lehigh Valley after that, though it’s unclear how long he’ll be in the lab.

Sims, 31, started the season with the Nationals. He had signed a one-year, $3MM deal with Washington, though it quickly turned sour. He made 18 appearances but logged only 12 1/3 innings, allowing 19 earned runs. He issued 14 walks, a massive 19.4% of batters faced, which doesn’t even tell the whole story. He also hit seven batters in that time and threw three wild pitches. The Nats released him earlier this month.

Presumably, that’s why the Phils will start Sims with a trip to the lab, to try to find out what’s wrong with him. If they can get him back on track, he could be a nice buy-low pickup. From 2019 to 2023, Sims did a lot of good work for the Reds. He tossed 183 1/3 innings over that time. His 12.2% walk rate was certainly high but he offset that somewhat by striking out 31.9% of batters faced.

He’s been in a tough stretch more recently. In 2024, he was largely his old self for a while, posting a 3.57 ERA through 43 appearances with the Reds. But he was traded to the Red Sox at the deadline and immediately floundered. He logged 14 innings for Boston around an IL stint for a lat strain, with a 6.43 ERA. He had a 14.8% strikeout rate and 16.4% walk rate for the Sox. That was a small sample size of work with an injury in the middle, but his struggles carried forward into 2025.

If the Phils can get him back to his 2019-2023 form, he’ll be a low-cost addition to their bullpen. Since the Nats released him, they are on the hook for the rest of his salary for this year. If the Phils call Sims up at any point, they would only have to pay him the prorated version of the league minimum salary for any time spent on the roster. That amount would be subtracted from what the Nats pay.

The Phils are a third-time payor of the competitive balance tax and are above the top tier, meaning they face a 110% tax rate on anything they add to the payroll. They also have concerns in their bullpen. Philly relievers have a collective 4.48 ERA, putting them in the bottom third of the league. One of their most effective relievers this year has been José Alvarado, but he just got hit with an 80-game PED suspension.

The club will surely be looking for various ways to bolster the bullpen in the coming months, including with trades as the July 31st deadline approaches. Not many teams are selling this early, so it makes sense to take a flier on a guy like Sims to see what happens.

Photo courtesy of James A. Pittman, Imagn Images

Mariners Select Casey Lawrence, Designate Austin Shenton For Assignment

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The Mariners announced that they have selected the contract of right-hander Casey Lawrence. Left-hander Jhonathan Díaz was optioned to Triple-A Tacoma in a corresponding active roster move. To open a 40-man spot for Lawrence, infielder Austin Shenton has been designated for assignment. Brady Farkas of Refuse to Lose was among those to relay last night that Lawrence was likely to be called up today.

Lawrence, 37, has been on and off the Mariners’ roster all year long. He signed a minor league deal with Seattle in the offseason and this is the fourth time they have selected him to the roster. In the first two instances, he was quickly designated for assignment after an appearance or two. He elected free agency after clearing waivers and returned to the club on a fresh minor league deal. His third DFA resulted in him being claimed by the Blue Jays. That club gave him similar treatment, putting him into one game before sending him into DFA limbo. Lawrence again elected free agency and returned to the M’s on a fresh minor league deal, leading to today’s selection.

Around all those transactions, he has 12 2/3 innings in five appearances. He has a 4.97 earned run average, 8.3% strikeout rate, 1.7% walk rate and 45.3% ground ball rate. He now has a 6.59 career ERA in 136 2/3 innings, spread over five different seasons.

The Mariners recently put Bryce Miller on the 15-day injured list, joining George Kirby and Logan Gilbert. That leaves them with a four-man rotation core of Luis Castillo, Bryan Woo, Emerson Hancock and Logan Evans. When Miller hit the IL about a week ago, Díaz was recalled to give the club a fresh arm capable of covering multiple innings, but he hasn’t been used since. His last outing was a minor league game on May 9th, 11 days ago.

Lawrence last pitched on the farm May 15th. That was only for two innings, but it seems the Mariners felt better about him on regular rest as opposed to Díaz after such a long layoff. Casey Legumina is listed as tonight’s starter but he will probably serve as an opener, as he’s mostly been a one-inning guy this year. After that, the M’s will see what they get from Lawrence as part of a bullpen game.

To get Lawrence onto the big league roster, the M’s are risking losing Shenton. The 27-year-old infielder was acquired from the Rays in a November cash deal. He’s out to a slow start this year. He has stepped to the plate 169 times at the Triple-A level. He has eight home runs but has been punched out at a 29% clip. He has a .207/.284/.413 line and 76 wRC+ on the year.

That rough performance has nudged him off the 40-man and into DFA limbo, which can last for as long as a week. However, the waiver process takes 48 hours, so the Mariners will have a maximum of five days to explore trade interest.

It’s possible that some other club looks beyond the rough 2025 numbers to see potential. Over the 2023 and 2024 seasons, Shenton took 940 minor league plate appearances. His 28.1% strikeout rate in those was certainly high but he also drew walks at a huge 15.1% clip and hit 49 home runs. He produced a combined slash line of .286/.399/.549 in that time, leading to a 149 wRC+.

For his minor league career, Shenton has mostly played the infield corners, with some brief looks at second base and in the outfield corners as well. He has less than a year of service time and is still optionable for the rest of this year and one additional season. Put it all together and it’s possible some club will be enticed to acquire him as a depth piece.

Photo courtesy of Steven Bisig, Imagn Images

Pirates Select Isaac Mattson

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The Pirates announced today that they have selected the contract of right-hander Isaac Mattson. He’ll take the active roster spot of fellow righty Colin Holderman, who lands on the 15-day injured list due to right thumb inflammation. To open a 40-man spot for Mattson, infielder Nick Gonzales was transferred to the 60-day injured list. Noah Hiles of the Pittsburgh Post-Gazette relayed the Mattson and Holderman moves prior to the official announcement (link one, two and three).

It’s been an unfortunate season for Holderman so far, who already spent time on the IL due to a right knee sprain in April. He has allowed 15 earned runs in 15 innings, giving him a flat 9.00 earned run average. He has 11 strikeouts and walks apiece, giving him a 14.9% clip in both of those categories, both of those being worse than average.

Perhaps the injuries provide an explanation for his struggles, as he was far better in previous seasons. Over the 2023 and 2024 campaigns, he had a 3.52 ERA in 107 1/3 innings, pairing a 24.6% strikeout rate with a 9.7% walk rate.

Ideally, a bit of a rest period will get him healthy and back on track. It’s turning into a lost season for the Bucs, as their 15-33 record has them near the National League basement, with only the Rockies beneath them. Holderman is under club control through 2028, so it would make sense to prioritize his long-term health as opposed to benefitting the team in the short term.

Taking his place is Mattson, who is having a strong 2025 so far. The 29-year-old signed a minor league deal with the Bucs in December and has been with Triple-A Indianapolis all year so far. He has logged 18 innings for that club with a 2.50 ERA, 30.6% strikeout rate and 6.9% walk rate.

Those are encouraging numbers, though in a small sample. From 2021 to 2024, Mattson tossed 156 1/3 innings on the farm with a 3.91 ERA and 28.2% strikeout rate but a 13.7% walk rate. So far this year, he has basically cut that walk rate in half. If he can keep that up, perhaps he’ll get some runway to add to his major league track record, which currently consists of a 5.59 ERA in 9 2/3 innings. However, he does have options, so it’s possible the Bucs shuttle him back to Indianapolis when they need a fresh arm.

As for Gonzales, he landed on the 10-day injured list on March 28th due to a non-displaced fracture in his left ankle. His 60-day count is retroactive to that initial IL placement, so he’ll be eligible to be reinstated about a week from today. He started a rehab assignment on Saturday but it seems the Bucs will let him get a few more minor league contests under his belt, which is understandable since he’s been out of action for close to two months.

Photo courtesy of Charles LeClaire, Imagn Images

Tigers Designate Tomas Nido For Assignment

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The Tigers announced Tuesday that catcher Tomas Nido has been designated for assignment. His spot on the roster will go to fellow catcher Jake Rogers, who is being reinstated from the injured list after missing about six weeks with an oblique strain.

Nido’s DFA shouldn’t come as a huge surprise. Though he’s hitting .343 with Detroit, that’s a 12-for-37 sample that’s consisted entirely of singles and has come without a walk. Nido’s offense has been buoyed by a .480 average on balls in play. He’s fanned 10 times in 37 plate appearances (27%) and chased pitches off the plate at a grim 41% clip. He’s a well-regarded defender, but Nido entered the season as a career .210/.245/.309 hitter in 945 major league plate appearances. He was hitting .160/.222/.320 in 28 Triple-A plate appearances at the time he was originally summoned to the majors in place of the injured Rogers.

Detroit will happily take the month-plus of solid backup work for Nido and would surely love to pass him through waivers in order to retain him as a depth option in Triple-A Toledo. It’s hardly out of the question that he gets claimed, but there’s a good chance he’ll pass through waivers unclaimed as he did in June 2023 after the Mets had designated him for assignment. If Nido does clear waivers, he’d have the right to reject a minor league assignment (by virtue of both service time and that 2023 outright) in lieu of electing free agency.

White Sox Designate Yoendrys Gomez For Assignment

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The White Sox announced Tuesday that right-hander Yoendrys Gomez has been designated for assignment. His spot on the roster goes to veteran righty Adrian Houser, whose previously reported major league deal with the South Siders has now been formally announced. Chicago had just claimed Gomez off waivers from the Dodgers ten days ago.

The Sox were Gomez’s third team of the still-young season. A former top prospect in the Yankees’ system, he’s bounced from the Bronx to L.A. to Chicago’s South Side. Along the way, he’s totaled 17 2/3 innings and allowed 13 runs (6.62 ERA) on 20 hits and 13 walks with 13 strikeouts. He tossed 3 1/3 innings with Chicago and allowed three runs on five hits, two walks and a hit batter. Gomez has now pitched 31 innings in the majors and yielded a 5.23 ERA.

Lackluster major league track record notwithstanding, Gomez sports near-identical ERAs of 3.64 and 3.67 in Double-A and Triple-A, respectively. Those have come in samples of 83 1/3 innings and 81 2/3 frames. Gomez has fanned 27% of his opponents in Triple-A against an 11.3% walk rate, and his Double-A rates (28.3% and 12.6%) are again quite similar.

Any team that claims or acquires Gomez will have to plug him right onto the MLB roster. He’s out of minor league options and can’t be sent down without first clearing waivers. The once-promising righty’s development has been slowed by the canceled 2020 minor league season and a Tommy John procedure that wiped out most of his 2021-22 campaigns. He could potentially benefit from some additional time in the upper minors, but it’s not a luxury teams can pursue until he passes through waivers. If Gomez goes unclaimed this time around, he’ll stick with the Sox as a depth option; he lacks the major league service time or the prior outright assignment needed to reject an outright assignment in favor of free agency.

White Sox Sign Adrian Houser

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May 20: The Sox announced today that they have signed Houser to a one-year, $1.35MM deal. Assuming that’s prorated, Houser will get about $950K. James Fox of FutureSox previously reported that Houser was expected to start tonight’s game for the Sox, indicating it would be a big league deal. The Sox designated right-hander Yoendrys Gómez for assignment as the corresponding move.

May 19: The White Sox are nearing an agreement with free agent righty Adrian Houser, reports Robert Murray of FanSided. It’s not clear if he’ll jump right onto the big league roster or head to Triple-A Charlotte. Houser, a client of BBI Sports Group, was granted his release from a minor league contract with Texas last week.

Houser signed with the Rangers during the offseason. He has worked out of the rotation at Triple-A Round Rock, tallying 39 1/3 innings across nine appearances. While his 5.03 earned run average is pedestrian, that’s not all that uncommon in the Pacific Coast League. Houser has stronger peripherals. He struck out a decent 22.8% of opponents while running an excellent 57.3% grounder rate.

Ground balls are Houser’s speciality. He has gotten grounders at a near-52% clip over parts of eight seasons in the majors. That was up in the 58-59% range during his best seasons with Milwaukee but has been down to a more normal 46-48% mark over the past few years. That caught up to him last year, as he allowed 5.84 earned runs per nine across 69 1/3 frames with the Mets. Houser had begun the season in New York’s rotation but was kicked to the bullpen after seven starts. His results in relief were much better. He carried an ERA north of 8.00 as a starting pitcher but turned in a 3.28 mark across 35 2/3 relief innings.

Texas signed him as rotation depth, which seems likely to be his role in Chicago (assuming the deal is finalized). The rebuilding White Sox have baseball’s least experienced rotation. Bryse Wilson is the only member of the current starting staff who entered the season with even one year of MLB service. Wilson, who had begun the year in the bullpen, stepped into the starting five after Martín Pérez suffered a forearm injury. He has allowed a 6.62 ERA with nearly as many walks as strikeouts over four starts.

Rule 5 pick Shane Smith has been the team’s best pitcher, turning in a sterling 2.05 ERA with average strikeout and walk numbers over his first nine MLB starts. Davis Martin and Jonathan Cannon have each been a little worse than average. Opening Day starter Sean Burke has struggled, though he’d been better this month until giving up six runs to the Cubs on Saturday. If Houser jumps right onto the MLB roster, he could nudge Burke or Wilson from the rotation. Burke still has a full slate of minor league options. Wilson is out of options and would need to be designated for assignment for the Sox to take him off the big league roster.

Orioles Release Kyle Gibson

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The Orioles announced that right-hander Kyle Gibson has been released. That was the expected outcome after he was designated for assignment on the weekend. Assuming he’s already cleared release waivers, he’s free to sign with any club.

Gibson, 37, was a late signing of the O’s. He and the club agreed to a one-year, $5.25MM deal in the latter half of March. He had lingered unsigned throughout the winter while the Orioles had some concerns about their pitching depth due to some spring injuries.

Adding a stable veteran like Gibson made plenty of sense but it did not work out at all. He agreed to be optioned to the minors at the start of the season, effectively as a delayed spring training ramp-up. He was recalled to the big leagues in late April but was quickly shelled. His first start was against the Yankees, with Gibson allowing four home runs in the first inning. He would eventually log 3 2/3 innings on the day, allowing five homers in total.

His next three starts weren’t much better. On May 5th, he allowed three earned runs in four innings against the Royals. He squared off against the Angels on May 10th, allowing five earned runs in four frames. On Saturday, he didn’t make it out of the first, getting tagged for six earned runs in two thirds of an inning against the Nationals. Put it all together and Gibson has an ugly 16.78 ERA through 12 1/3 innings this year. The O’s clearly ran out of patience, cutting him from the roster on Sunday.

Given those poor results and his salary, no club was going to claim him and take on the remainder of his contract. As a veteran with years of experience, he has more than enough service time to reject an outright assignment.

But as a free agent, he might generate interest. With the O’s on the hook for the remainder of his salary, another club would only have to pay him the prorated version of the major league minimum salary for any time spent on the roster. The recent results have obviously not been good but perhaps some teams will chalk that up to his unusual ramp-up period. Gibson has almost 2,000 big league innings and has generally been a serviceable back-end guy. As recently as last year, he posted a 4.24 ERA over 169 2/3 innings with the Cardinals.

Given his track record and the number of pitching injuries around the league, it wouldn’t be a surprise for him to secure a minor league deal from some club in need of experienced depth. That’s what recently played out with Kenta Maeda, who was released by the Tigers but then landed a minor league deal with the Cubs. If Gibson follows a similar path, he could perhaps get a chance to get in a nice groove in the minors and earn his way back to the big leagues.

It’s also possible that the O’s are the club to give him that minor league deal, as they still have rotation depth concerns with Grayson Rodriguez, Kyle Bradish, Tyler Wells and Albert Suárez all on the 60-day injured list.

Photo courtesy of Daniel Kucin Jr., Imagn Images

Astros Select Brandon Walter

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May 20: Per Chandler Rome of The Athletic, Walter has been selected and Wesneski transferred to the 60-day IL, as expected. Gordon has been optioned as the corresponding active roster move.

May 19: Left-hander Brandon Walter will start for the Astros tomorrow against Tampa Bay, manager Joe Espada told reporters (including Matt Kawahara of The Houston Chronicle). The Astros will need to add him to the 40-man roster. They can move Hayden Wesneski, who is ticketed for Tommy John surgery, to the 60-day injured list to create a 40-man spot. They’ll also need to make a corresponding active roster move involving a pitcher.

Walter signed a minor league contract with the Astros last August. It was apparently a two-year deal, as the southpaw spent last season on the injured list rehabbing a rotator cuff injury. Walter made his return to the mound during Spring Training, allowing four runs through seven innings.

He’s been working in a swing role at Triple-A Sugar Land, where he has started five of nine appearances. Walter owns a 2.27 ERA across 35 2/3 innings, backing that up with strong underlying marks. He’s getting grounders at a huge 60% rate, striking out upwards of a quarter of opponents, and has kept his walk rate to a minuscule 5.2% clip.

It has been a nice rebound effort for the 28-year-old lefty. Walter went from an unheralded 26th-round draft choice to one of the better pitching prospects in the Red Sox’s system a couple years ago. He was hit hard in his nine MLB appearances with the Sox, allowing a 6.26 ERA over 23 innings two seasons back. He owns a 4.19 ERA across parts of three Triple-A seasons. Walter isn’t going to overpower many hitters, as his four-seam and sinker each average 91 MPH. His five-pitch mix is headlined by his upper-70s sweeping slider.

Walter still has an option remaining, so the Astros can send him back to Sugar Land without putting him on waivers. For now, he joins rookie Ryan Gusto as swing options. Colton Gordon has taken Wesneski’s rotation spot, rounding out the starting five behind Hunter Brown, Framber Valdez, Ronel Blanco and Lance McCullers Jr. The Astros haven’t had an off day since May 8 and won’t be off until next Monday. They’ll likely use Walter and Gusto in some kind of tandem outing tomorrow to reduce the workload on the rest of the staff.

Alan Trejo Elects Free Agency

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The Rockies sent infielder Alan Trejo outright to Triple-A Albuquerque but he has exercised his right to elect free agency, according to his transactions tracker at MLB.com. That indicates he cleared waivers after being designated for assignment last week. The log also indicates that infielder Owen Miller was outrighted after last week’s DFA. He also has the right to free agency, but there’s no indication he has done so.

Trejo, 29 this month, got a brief run on Colorado’s roster. The Rockies acquired him from the Rangers in a cash deal at the end of April. He was sent to the plate 43 times but produced a dismal line of .175/.190/.225.

That’s an extreme low in a small sample but it continues his glove-first trajectory. He now has a .224/.269/.325 batting line and 49 wRC+ in 512 big league plate appearances. He has played the three infield positions to the left of first base, with at least 183 innings at each of those spots. His work at shortstop has been subpar but passable, while he’s been above average at both second and third base.

The Rockies acquired Trejo and selected Miller to fill in during a time when infielders Ezequiel Tovar, Tyler Freeman and Aaron Schunk were all on the IL, though all three were reinstated last week. Trejo and Miller are both out of options, leaving the Rockies little choice but to cut them from the 40-man entirely. As players with previous career outrights, they have the right to reject further outright assignments in favor of free agency.

Trejo’s entire big league career has been with the Rockies, though he has signed minor league deals with the Dodgers and Rangers. Perhaps he and the Rockies will reunite on a fresh minor league deal in the coming days but he will have the chance to talk to the other 29 clubs as well.

Miller was acquired from Milwaukee in a minor trade over the offseason. Colorado called him up despite a modest .244/.322/.372 slash line in Triple-A. He didn’t play much in the big leagues, going 2-14 while starting four games at second base. Assuming he doesn’t elect free agency, he’ll remain in the system as non-roster infield depth.

Photo courtesy of Eakin Howard, Imagn Images

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