Headlines

Go To Pro Hockey Rumors
Go To Hoops Rumors

Diamondbacks Rumors

Diamondbacks Trade Jose Castillo To Mets

By | at

The Mets acquired lefty reliever José Castillo from the Diamondbacks for cash, the teams announced. New York designated righty Kevin Herget for assignment to create a spot on the 40-man roster. Arizona had designated Castillo for assignment on Monday.

Castillo has technically appeared in five MLB seasons, though all but eight of his appearances came with the Padres during his 2018 rookie season. He turned in a 3.29 ERA over 38 1/3 innings that year but was subsequently set back by injury.

The 29-year-old signed a minor league deal with the Snakes in November. It marked his second consecutive season in the Arizona organization. He had spent all of last year with their Triple-A team in Reno, though he lost the first half of that season to injury. The Diamondbacks assigned him back to Reno to begin this season. He struck out seven while tossing 5 1/3 innings of one-run ball and was called up at the beginning of May.

The 6’6″ southpaw only spent a couple weeks in Torey Lovullo’s bullpen. He didn’t pitch well, allowing eight runs on 10 hits (including a trio of home runs) over 6 1/3 frames. Arizona bumped him out of the bullpen when Kendall Graveman returned from injury. Castillo is out of options, so they needed to designate him for assignment to take him off the MLB roster.

That out-of-options status means the Mets are prepared to give Castillo at least some time in their big league bullpen. They’ve been forced to scour the lefty relief market after losing Danny Young and A.J. Minter to season-ending injuries. They called up Génesis Cabrera from Triple-A Syracuse. He’s the only southpaw in Carlos Mendoza’s relief corps. Cabrera has managed five innings of one-run ball over four outings, but he had walked nearly 15% of opposing hitters in Triple-A before the promotion.

The Mets will need to remove someone from the major league bullpen once Castillo reports to the team. Dedniel Núñez is the obvious candidate, since he still has a couple options remaining. Cabrera is out of options, so the Mets would need to designate him for assignment if they wanted to use Castillo as their only left-hander.

Herget relinquishes his spot on the 40-man roster. The Mets claimed the 34-year-old off waivers from Milwaukee early last offseason. He only spent one day on the MLB roster, allowing two runs on three hits in one inning. He has otherwise been working out of the bullpen at Syracuse. Herget has only allowed five runs over 15 2/3 innings, but that came with a pedestrian 13:7 strikeout-to-walk ratio. He had a much stronger 32.4% strikeout rate over 38 appearances with Milwaukee’s top farm team a year ago.

The Mets will likely place Herget on waivers within the next few days. He has been outrighted twice in his career and would have the right to elect free agency if he goes unclaimed.

MLBTR Podcast: Devers Drama, Managerial Firings, And Jordan Lawlar

By | at

The latest episode of the MLB Trade Rumors Podcast is now live on Spotify, Apple Podcasts, and wherever you get your podcasts! Make sure you subscribe as well! You can also use the player at this link to listen, if you don’t use Spotify or Apple for podcasts.

This week, host Darragh McDonald is joined by Anthony Franco of MLB Trade Rumors to discuss…

Plus, we answer your questions, including…

  • Should the Orioles try to extend Cedric Mullins or Tomoyuki Sugano (35:05)
  • How real are the Twins and the Tigers? (39:00)
  • What should the Cardinals do in right field if Jordan Walker doesn’t get going? (44:50)
  • Why do the Mets seemingly do better with external pitching additions than their homegrown arms? (49:25)

Check out our past episodes!

The podcast intro and outro song “So Long” is provided courtesy of the band Showoff.  Check out their Facebook page here!

Photo courtesy of Ken Blaze, Imagn Images

Brandon Bielak Undergoes Season-Ending Shoulder Surgery

By | at

Right-hander Brandon Bielak recently underwent season-ending surgery, reports MLBTR’s Steve Adams. He’s expected to be ready for 2026 Spring Training. Bielak was released from a minor league deal with the Diamondbacks on Saturday after going on the full-season injured list last month.

The injury essentially ended Bielak’s stint with Arizona before it got off the ground. The 29-year-old signed a minor league contract with the Snakes in February. He worked 5 2/3 frames of two-run ball during Spring Training before being reassigned to the minors. Bielak started twice for Triple-A Reno. He allowed three runs across 9 2/3 innings with five strikeouts and walks apiece. Both appearances came within the first week of April. Bielak landed on the injured list on April 9 and was ruled out for the season within three days.

There’s a decent chance Bielak will spend the rest of the year as a free agent. He’ll be limited to minor league offers next winter but would again project as rotation or long relief depth if his recovery goes as expected. A former 11th-round draftee by the Astros, Bielak has spent most of his minor league career as a starting pitcher. He made 13 big league starts with Houston a couple seasons ago, though his 16 MLB appearances last year all came in relief.

Bielak divided last season between Houston and the A’s. He turned in a 5.16 ERA over 29 2/3 big league frames and a 6.08 mark across 16 Triple-A appearances. He now owns a 4.63 ERA over 204 major league innings. Bielak has a 4.37 mark over six career Triple-A seasons — a decent number for a depth starter who has spent all that time in the hitter-friendly Pacific Coast League.

Diamondbacks Designate Garrett Hampson, José Castillo For Assignment

By | at

The Diamondbacks announced that they have recalled infielder Jordan Lawlar, a move that was previously reported. They also reinstated right-hander Kendall Graveman from the injured list. To open roster spots for those two, lefty José Castillo and infielder Garrett Hampson were both designated for assignment. The club’s 40-man roster count drops to 38.

Hampson, 30, inked a minor league deal in free agency and broke camp with the D-backs after hitting .283/.393/.348 in 56 trips to the plate this spring. He hasn’t been able to carry that production over to the regular season. He’s appeared in only 18 games and taken just 41 turns at the plate, batting .167/.359/.167 in that span. He’s been a pest for opposing pitchers in the sense that he’s taken 10 walks, but Hampson is also 5-for-30 (all singles) and has bottom-of-the-scale contact metrics when he’s put the ball in play.

Arizona is Hampson’s fourth team in four seasons. He spent the first five seasons of his career with the Rockies but since his final season there has had one-year stints with the Marlins, Royals and now D-backs. He hasn’t hit much in any of those spots, combining for a .237/.308/.323 slash in 750 plate appearances dating back to 2022. However, Hamspon is a plus runner (84th percentile sprint speed, per Statcast) who can be deployed virtually anywhere on the diamond. Even though he’s been seldom used with the D-backs, he’s still seen time at five positions: second base, shortstop, third base, left field and center field.

Castillo, 29, has spent the better part of the past half decade in injury rehab. Since a strong MLB debut with the 2018 Padres, the southpaw has been on the injured list due to a torn ligament in his pitching hand, a torn lat and Tommy John surgery. Just making it back to the majors in the wake of so many rapid-fire injuries is a feat, but Castillo’s brief time with the Snakes didn’t go well. He pitched 6 1/3 innings out of Torey Lovullo’s bullpen — already his most in a big league season since ’18 — and was pounded for eight runs on 10 hits and three walks with three strikeouts.

As a rookie, Castillo fired 38 1/3 innings of 3.29 ERA ball for the Friars, fanning a gaudy 34.7% of his opponents against an 8.1% walk rate. He was terrific in a small 5 1/3-inning sample in Triple-A Reno this year, allowing only a run on four hits and no walks with seven strikeouts and a 58% grounder rate. That performance could lead to some interest from other teams, although Castillo’s once-95-mph heater has understandably dipped to an average of 93.3 mph in the wake of all those injuries.

Both Castillo and Hampson can spend a maximum of one week in DFA limbo. The D-backs can look to trade them during that time or simply place them on outright waivers. Since waivers take 48 hours to process, the team has up to five days to orchestrate trades of either player, should there be a market. In the event that they’re placed on waivers and go unclaimed, both players have enough major league service time to reject an outright assignment in favor of free agency.

Evan Longoria To Sign One-Day Contract, Retire As Member Of Rays

By | at

Three-time All-Star and 2008 American League Rookie of the Year Evan Longoria will sign a one-day contract to officially retire as a member of his original organization, the Rays, reports Marc Topkin of the Tampa Bay Times. He’ll be honored in a ceremony before the Rays’ game on June 7.

Longoria sat out the 2024 season and said last summer that he was not pursuing a return to playing but was also not formally filing his retirement paperwork just yet. That left the door ever so slightly cracked for one final comeback bid, but Longoria will now formally call it a career after nearly 2000 big league games and more than 8200 major league plate appearances.

Longoria, 39, was the No. 3 overall pick by the Rays out of Long Beach State back in 2006. He was in the majors less than two years later, getting his first call to the majors on April 12, 2008. He signed a six-year, $17.5MM extension just six games into his major league career. At the time, bets of that magnitude on such young and unproven players were nowhere near as commonplace as they are in today’s game.

That extension, which contained a trio of club options, was the largest deal ever guaranteed to a player with such little MLB experience at the time it was signed. Longoria wasted little time in proving it money well spent. He hit .272/.343/.531 with 27 homers, 31 doubles and a pair of triples as a rookie, making the American All-Star team just a few months into his MLB career.

From 2008-13, Longoria was on the short list of best players in MLB. Only Miguel Cabrera, Cliff Lee, Justin Verlander and Felix Hernandez generated more wins above replacement than Longoria’s 34.8 in that span, per FanGraphs. His 12th-inninng walk-off home run (video link) in the final game of the 2011 regular season wound up propelling Tampa Bay to the postseason that year, and Longoria’s celebratory trot with both arms above his head as he rounded first base is a timeless memory for Tampa Bay fans — one that the team commemorated with a statue outside of Tropicana Field.

Longoria proved such a bargain and such a critical piece to the Rays’ success that in November 2012, they extended him for a second time — this time on the first nine-figure contract in franchise history. Tampa Bay exercised all three of Longoria’s club options in one fell swoop and tacked on another six years and $100MM in new money (bringing the total guarantee to $136MM over nine seasons).

Longoria didn’t quite keep up his early career form, but in five subsequent seasons with the Rays (2013-17) after signing that second contract, he still slashed .265/.325/.457 (113 wRC+) while maintaining his brand of standout defense at the hot corner. FanGraphs (19.8 WAR) and Baseball-Reference (22 WAR) suggested he was still one of the game’s top 25 or so position players even if he wasn’t quite at the very top of the sport anymore.

With Longoria set to secure 10-and-5 rights early in the 2018 season — ten years of service, including five straight with the same team — the Rays made the decision to look for a trade in the 2017-18 offseason. Players with 10-and-5 rights gain full no-trade protection, and Longoria’s remaining five years and $81MM were more palatable to larger-market clubs than the cost-conscious Rays. In December 2017, the Rays lined up on a swap sending Longoria to San Francisco in exchange for outfielder Denard Span, infielder Christian Arroyo, lefty Matt Krook and righty Stephen Woods. At the time of the swap, Arroyo was a few years removed from being a first-round pick out of high school and was considered to be a top-100 prospect on some rankings.

Longoria’s first season as a Giant was a disappointment — the least-productive of what would end up being 16 seasons in the majors. He bounced back to league-average offense with solid defense in 2019, but at that point his days of star-level output were behind him. Longoria had a down showing in 2020 and posted big rate stats in a more limited, part-time role in 2021-22. He signed a one-year deal with the Diamondbacks in 2023 and had a nice first half of the season before fading down the stretch.

That 2023 season with Arizona, during which Longoria played in the second World Series of his career, will now officially prove to be his last. He’ll walk away from the game with a career .264/.333/.471 batting line, 342 home runs (tied with Ron Santo for 108th all-time), 431 doubles (145th all-time), 26 triples, 58 stolen bases, 1017 runs scored and 1159 runs batted in (185th all-time).

Longoria made three All-Star teams, won three Gold Gloves, won a Silver Slugger and landed MVP votes in six of his 16 MLB seasons. FanGraphs pegged him at 55.2 wins above replacement, while Baseball-Reference was even more bullish, crediting him with 58.9 (133rd all-time among position players). Between his pair of extensions and that final one-year deal with the D-backs, he earned more than $148MM in a 16-year career that will garner some legitimate consideration among the electorate when his name is on the Hall of Fame ballot five years from now.

Diamondbacks To Promote Jordan Lawlar

By | at

The Diamondbacks are poised to recall top prospect Jordan Lawlar, according to a report from Nick Piecoro of the Arizona Republic. Lawlar is already on the club’s 40-man roster, so only an active roster move will be necessary to promote the former No. 6 overall pick.

The promotion is a long time coming for Lawlar, who actually made his big league debut back in 2023 with a 14-game cup of coffee in late September. He hit just .129/.206/.129 in that brief stint in the majors, though the Diamondbacks nonetheless had enough belief in their top prospect to carry him on their postseason roster that year as a pinch hitter and defensive replacement. He got only two plate appearances during that postseason run, although he did draw a walk and score a run against the Rangers in the World Series.

It seemed like a given that Lawlar would play a big role in the Diamondbacks’ 2024 plans after his debut in 2023, but things unfortunately didn’t quite work out that way as he was limited to just 23 games last year by thumb surgery and a hamstring strain. The youngster hit an astounding .367/.439/.592 in the brief period he was healthy enough to play at the Triple-A level last year, but there simply wasn’t enough time left in the calendar for Lawlar to get a promotion to the big leagues by the time he was back in game shape after those injuries.

Headed into 2025, Lawlar was once again held back from joining the big league roster. That’s in part due to the presence of clear everyday players at every position he plays (Ketel Marte at second base, Eugenio Suarez at third base, and Geraldo Perdomo at shortstop), but also an acknowledgment of Lawlar’s lost season in 2024 and the developmental hurdles associated with that.

After Lawlar lost nearly an entire year of reps, Arizona brass appeared to be concerned about the impact a part-time role in the majors would have on his development. Lawlar has forced the issue across 37 games at Triple-A so far, however, with a .336/.419/.579 slash line in 179 plate appearances. Lawlar’s knocking on the door has evidently become impossible to ignore, and the Diamondbacks will now need a find a way to work all four of those infielders, first baseman Josh Naylor, and DH Pavin Smith into the lineup on a regular basis.

Piecoro notes that manager Torey Lovullo said he believes that if Lawlar could get into four games per week while mixing and matching positions, then that would be enough playing time for him to stay fresh and avoid falling behind on his development.

Removing any of Suarez (117 wRC+), Marte, (154 wRC+), Smith (175 wRC+), Naylor (125 wRC+), or Perdomo (138 wRC+) from the lineup for even a day is a not insignificant hit to the Diamondbacks’ offense, though of course Lawlar’s own contributions as a consensus top-30 prospect in the sport for a fourth consecutive season could help to balance out those losses. Smith typically only plays against right-handed pitching, so Lawlar could slide into the DH slot against lefties fairly seamlessly. The other four are all everyday players, but theoretically each could sit just once a week with Smith covering first base when Naylor is sitting so Lawlar can DH and Lawlar filling in around the rest of the infield.

An arrangement along those lines would likely keep veteran players like Suarez and Marte fresher, allow each of the club’s regulars to stay in the lineup as much as possible, and get Lawlar plenty of exposure to big league pitching as he works to establish himself at the big league level. Speculatively speaking, if Lawlar takes to the majors well, the D-backs could look into moving someone like Suarez (a pending free agent after this season) at the trade deadline to open up a more regular role for the youngster while bolstering a bullpen that has lost both A.J. Puk and Justin Martinez to the injured list. Injuries can always open up other avenues to at-bats.

For now the 21-20 Diamondbacks need to dig themselves out of fourth place in the NL West and put themselves ahead of teams like the Cardinals and Phillies in the NL Wild Card race. They’ll hope that Lawlar, still just 22, can provide a spark. He’s hit at an above-average clip at every level of the minors while showing off effective defense all around the infield. He’s also an excellent baserunner, having swiped 39 bags in 2022 and 36 the following year. This season, he’s already gone 13-for-14 on the bases in just 37 games. Lawlar is the sort of dynamic, all-around player who can help virtually any team, even one that already boasts a top-seven offense in the majors like the Diamondbacks.

Diamondbacks, Michael Perez Agree To Minor League Deal

By | at

The D-backs have agreed to a minor league contract with free agent catcher Michael Perez, per their transaction log at MLB.com. He’s been assigned to Triple-A Reno.

Perez, 32, has played in parts of six big league seasons, splitting time with the Rays, Pirates and Mets from 2018-23 and accruing more than three years of service time along the way. He’s a career .179/.248/.306 hitter in 599 major league plate appearances but draws strong defensive ratings, particularly when it comes to his ability to block balls in the dirt and control the running game (28.7% caught-stealing rate).

Though he hasn’t appeared in the majors with Arizona, Perez is signing on for his second stint with the D-backs organization. He appeared in 24 games for Reno last year as well. The lefty-hitting backstop split the 2024 season between the Triple-A affiliates for the D-backs, Orioles and Mariners, batting a combined .259/.354/.453 in 246 plate appearances. He’s a lifetime .246/.336/.424 hitter in 272 Triple-A games.

The Diamondbacks haven’t gotten much production out of Gabriel Moreno and Jose Herrera behind the plate this year — their combined .215/.291/.273 line translates to a 61 wRC+ that ranks 27th in MLB — and they’ve been without prospect Adrian Del Castillo all season due to a shoulder injury. He’s on the minor league injured list. Glove-first veterans Rene Pinto and Aramis Garcia have both hit well in Reno, even when adjusting for the heightened run-scoring environment there, but Perez will give them some extra depth who can also handle first base.

Corbin Burnes To Miss Next Start With Shoulder Inflammation

By | at

Diamondbacks right-hander Corbin Burnes is battling inflammation in his right shoulder, as reported by Nick Piecoro of The Arizona Republic. Piercoro adds that Arizona intends to scratch Burnes from his next start. It’s unclear whether or not he’ll ultimately require a stint on the injured list due to the issue, though Piecoro relays that manager Torey Lovullo told reporters before today’s game that they remain hopeful he’ll be back on the mound after just one missed start. The manager suggests that Burnes has been nagged by fatigue in his shoulder going back his last couple of starts, and that led to the club sending him for an MRI back in Arizona.

That MRI revealed “a little bit” of inflammation in Lovullo’s words, leading to the decision to skip the right-hander’s next start. Even as the Diamondbacks remain optimistic that Burnes will miss just one outing, the news is worrying for fans in the desert. After all, Arizona has fallen to fourth place in a hyper-competitive NL West division despite their solid enough 17-15 record. That record leaves them on the outside looking in for an NL Wild Card spot, behind the Padres, Giants, Phillies, and Reds in the standings aside from the division-leading Dodgers, Cubs, and Mets.

That lackluster pitching is a big reason for that middling record. While Arizona’s offense has been phenomenal so far, their run prevention has left something to be desired despite being a major strength on paper. The starting five’s 4.27 ERA is a bottom-ten figure in baseball this year, and Brandon Pfaadt is the only pitcher in the mix who has met expectations with a dazzling 2.78 ERA across six starts. Zac Gallen, Merrill Kelly, and especially Eduardo Rodriguez have all struggled so far this year.

Burnes, meanwhile, has a decent enough ERA of 3.58 that clocks in 18% better than league average by ERA+. That’s not quite what the Diamondbacks had in mind when they signed him to a six-year, $210MM deal over the winter, however, and his peripherals tell a more alarming story. His pedestrian 20.0% strikeout rate is the lowest of his career, and he’s paired it with a hefty 12.1% walk rate after having reliably excellent command in recent years. Burnes’s 5.08 FIP, 5.31 xERA, and 4.61 SIERA are all very worrisome, and suggest that even his mid-rotation production to this point in the year isn’t sustainable.

Perhaps this inflammation that he’s been battling is at least part of the explanation for the righty’s struggles. The 30-year-old hurler has made at least 32 starts in each of the past three seasons, and while that durability is admirable it’s the nature of pitching in this current era of baseball that hurlers need more rest than ever before as they push themselves for higher velocity and maximum spin efficiency. Perhaps this breather will be enough to calm the inflammation and get Burnes back on track, which would surely be a relief for Arizona as they fight to force their way back into the NL playoff picture after their surprising World Series run in 2023 and narrowly missing out on October last year.

Whether the inflammation forces Burnes to sit down for just one start or requires a stint on the injured list, the Diamondbacks are reasonably well-equipped to handle his absence even after losing sixth starter Jordan Montgomery to Tommy John surgery earlier this year. Ryne Nelson is in the bullpen as a long reliever but threw 68 pitches his last time out and is stretched out enough for a spot start or even to slide into the rotation longer-term as needed. He appears to be the most likely candidate to replace Burnes, though hurlers like Tommy Henry and Cristian Mena are also on the 40-man roster as potential depth options.

Dodgers Acquire Ryan Loutos, Claim J.P. Feyereisen

By | at

The Dodgers have acquired right-hander Ryan Loutos from the Cardinals in exchange for cash and claimed righty J.P. Feyereisen off waivers from the Diamondbacks, reports Fabian Ardaya of The Athletic. The Loutos trade was previously reported by Derrick Goold of the St. Louis Post-Dispatch. The Dodgers moved righties Blake Treinen and Michael Kopech to the 60-day injured list to open 40-man roster spots for the two pickups.

Loutos, 26, has had a somewhat unusual trajectory to the big leagues, as explored in this profile from Goold last year. Due to his computer science background, the Cards hired him to develop an app to help minor leaguers use data, and let him pitch as well. “I know what I need to do to improve. I know what I could do,” Loutos said. “But I also know from their shoes what they see: ‘OK, let him play for a while. See what happens. Worst-case scenario, we maybe offer him a job in the front office. Best-case scenario, maybe he’s in the big leagues someday.’”

So far, the playing part has worked out okay. He made his major league debut last year, though it was brief. He tossed 2 1/3 scoreless innings over three appearances. From the start of 2023 to the present, he has logged 134 innings on the farm with a 5.10 earned run average, 24.2% strikeout rate and 10.7% walk rate.

Feyereisen, 32, has a much longer big league track record. In 2021, he tossed 56 innings between the Brewers and Rays with a 2.73 ERA. He managed to top that performance in 2022, tossing 24 1/3 scoreless innings, with a 29.1% strikeout rate and 5.8% walk rate. However, a shoulder injury intervened and stopped him from building on those numbers.

He underwent shoulder surgery and was traded to the Dodgers ahead of the 2023 season. He hasn’t been able to fully re-establish himself in the majors since then. He eventually spent that entire 2023 season on the IL, not making an official appearance anywhere. The Dodgers shuttled him to Triple-A and back in 2024. He only got to pitch 11 big league innings, with an 8.18 ERA in those. His 5.48 ERA in Triple-A wasn’t especially impressive either.

He was outrighted off the roster last year, allowing him to elect free agency and sign a minor league deal with the Diamondbacks coming into 2025. He got called up a couple of weeks ago after posing a 0.96 ERA in Triple-A. He then allowed two earned runs in two innings for the Snakes before getting designated for assignment and put on waivers.

For the Dodgers, they are likely happy to have some fresh arms, one of which they are already familiar with. With Blake Snell and Tyler Glasnow both on the IL due to shoulder inflammation, they are down to a four-man rotation of Yoshinobu Yamamoto, Roki Sasaki, Tony Gonsolin and Dustin May. The club is keeping Sasaki and Yamamoto on the weekly schedule the pitchers are accustomed to from their time in Japan.

That situation, plus plenty of other injuries, have led to a great deal of creativity in cobbling the staff together. Pitchers like Landon Knack, Justin Wrobleski, Bobby Miller and Ben Casparius have made spot starts. Yoendrys Gómez, recently claimed off waivers from the Yankees, is working a long relief role. Both Loutos and Feyereisen have options, so the Dodgers are adding some arms with some roster flexibility. The team is about to start a stretch of playing ten straight games. After one off-day, they will play another nine straight.

To open spots for those two, Kopech and Treinen hit the 60-day IL. Kopech’s move isn’t especially surprising. He’s been on the 15-day IL all year long due to a shoulder impingement and still hasn’t begun a rehab assignment. Even if he were to start one now, he would need a few weeks as a sort of delayed spring training. He could be reinstated from the IL in a couple of weeks but that doesn’t seem to be likely.

The move for Treinen is more notable. He started the season healthy but landed on the 15-day IL April 19th due to right forearm tightness. This transfer to the 60-day IL indicates the Dodgers don’t expect him back before the middle of June. He is 36 years old, turning 37 in June, and has a recent history of arm injuries. He only tossed five innings in 2022 due to shoulder problems and then underwent surgery which wiped out his 2023 campaign.

He got back on track last year with a 1.93 ERA in 46 2/3 innings, plus another 12 1/3 postseason innings with a 2.19 ERA, helping the Dodgers win the World Series. The team believed in that bounceback enough to give him a two-year, $22MM deal in free agency, the largest deal for a reliever going into his age-37 season or older since Mariano Rivera’s deal with the Yankees back in 2010.

Shortly after Treinen landed on the IL last month, manager Dave Roberts described the injury as a “low-grade sprain of the forearm” and downplayed the severity by saying “we’re in the dodged-a-bullet category.” It’s unclear if Roberts was just masking the extent of the injury or if something changed, but Treinen now appears to be slated for an absence of at least a couple of months.

Photo courtesy of John Geliebter, Imagn Images.

Diamondbacks Place Justin Martinez On 15-Day IL, Transfer A.J. Puk To 60-Day IL

By | at

The D-backs announced Thursday that they’ve placed closer Justin Martinez on the 15-day injured list due to right shoulder inflammation. Lefty Jose Castillo’s contract was selected from Triple-A Reno to take his spot on the active roster. Fellow southpaw A.J. Puk moves from the 15-day IL to the 60-day IL to create 40-man roster space for Castillo.

Martinez was set for an MRI this morning after experiencing an alarming velocity drop over the past week. He’s gone from averaging triple digits on his power sinker to sitting just 93.5 mph in his most recent appearance. Though the right-hander claimed he felt 100% healthy, he’ll head to the injured list with a still-vague injury designation. The D-backs will surely provide more information on his status and potential timeline later today.

This slate of injury-related moves is a brutal blow for a D-backs team that spent much of the offseason looking for established bullpen arms but wound up making generally smaller-scale moves. Martinez and Puk are the team’s two best relievers and entered the year as the favorites to work in save and high-leverage hold situations. They’re both on the shelf, and while Puk’s flexor strain won’t require surgery, today’s move to the 60-day IL only further underlines the fact that Arizona is going to be without him for quite some time.

Martinez, 23, averaged 100.2 mph on his sinker in 2024 and averaged better than 100 mph on the pitch in each of his first eight appearances this year. A dip into the 97-99 mph range over his next three outings was concerning but not necessarily cause for full-fledged alarm. Last night’s drop all the way to 93.5 mph, in an outing where he faced three hitters and allowed two walks and a home run, is another story entirely.

It’s become an ominous situation for D-backs fans to monitor, and one that’s compounded by Puk’s absence. Martinez broke out with a 2.48 ERA, 29.5% strikeout rate, 11.7% walk rate, 58.9% ground-ball rate, eight saves and seven holds across 72 2/3 innings for the Snakes last year. He clearly has some command issues, but the elite velocity coupled with plus strikeout and ground-ball rates helped to mitigate that bloated walk rate.

The D-backs, clearly bullish on Martinez’s future, signed him to a five-year, $18MM extension during spring training. The contract contains a pair of club options for the 2030-31 seasons, which would’ve been Martinez’s first two free agent years. At the time, there was little reason to fear an injury (beyond the general attrition rate of pitchers in today’s game). Now, the outlook is far hazier.

Were Puk healthy, the Diamondbacks would surely have just plugged him into the closer’s role and moved forward with Kevin Ginkel setting up. But Puk hit the injured list with elbow inflammation after a strong eight-inning start to his 2025 season, and a subsequent MRI revealed a flexor strain that’ll require a notable shutdown period.

With Martinez and Puk both shelved, the D-backs will likely turn closing duties over to a combination of Ginkel and Shelby Miller, who returned to Arizona on a minor league deal this offseason and has been outstanding after earning a job this spring. Ginkel only just returned from his own bout of shoulder inflammation, which sidelined him for the first month of the season. From 2022-24, he pitched a combined 164 2/3 innings with a 2.95 ERA, 26.1% strikeout rate and 7.9% walk rate. Miller has pitched 12 2/3 scoreless innings in his return to Phoenix, punching out a gaudy 31.9% of opponents against an 8.5% walk rate.

The 29-year-old Castillo isn’t likely to replicate the type of results that could’ve been expected from either Martinez or Puk, but he’s a reasonably experienced southpaw who’s had some prior success in the majors. Back in 2018-19, the southpaw looked to be breaking out as a viable bullpen arm for the division-rival Padres, pitching to a combined 3.23 ERA with a 35% strikeout rate and 8.4% walk rate in his first 39 big league innings.

Injuries have blown up Castillo’s career since. He suffered a torn ligament in his hand that cut his 2019 season short. A torn lat wiped out his 2020 season. He underwent Tommy John surgery in 2021 and missed most of the 2022 season as a result. It’s a staggering run of unfortunate maladies for the southpaw, but he’s shown some encouraging signs since joining the D-backs on a minor league deal last year.

In 24 innings between Arizona’s Rookie-ball and Triple-A affiliates last year, Castillo notched a 3.75 ERA. He whiffed 24.1% of his opponents and issued walks at an 8.1% clip with Triple-A Reno. This year, he’s started out by holding opponents to a run on four hits and no walks with seven strikeouts in 5 1/3 frames. Castillo has had an arduous grind to get back to the majors after pitching just two MLB frames from 2019-23. He’s now poised for his first real look in a bullpen since 2018, despite accumulating four years of MLB service time through his various stints on the 60-day injured list.

Because he only has four years of service, Castillo could be a multi-year option for Arizona if he can get back to his early career form. Enough time has already elapsed that he won’t be able to reach five years of service before the conclusion of the 2025 season. That means even if he’s back in the majors for good — and that’s far, far from certain — he can be controlled through the 2027 campaign via arbitration.

Show all

MLB Trade Rumors is not affiliated with Major League Baseball, MLB or MLB.com

hide arrows scroll to top