Mets Select Zach Thornton
May 20th: Thornton has now been officially selected, per a team announcement. Right-hander Daniel Duarte was optioned as the corresponding active roster move. They opened a 40-man spot yesterday when they designated outfielder Austin Slater for assignment and recalled Nick Morabito.
May 18th: The Mets are going to promote pitching prospect Zach Thornton this week. Manager Carlos Mendoza informed reporters, including Tim Britton of The Athletic, that Thornton will play some kind of role for the Mets on Wednesday. That could be as a starter or working as a bulk guy behind an opener. Thornton is not yet on the 40-man roster, so the Mets will have to make room for him somehow.
Thornton, now 24, was a fifth-round pick of the Mets in 2023. He put himself on the prospect map with a strong 2025 season. He only made 14 starts before an oblique injury ended his season, but the numbers were good. Between High-A and Double-A, he tossed 72 2/3 innings, allowing 1.98 earned runs per nine. He struck out 28.5% of batters faced and only walked 4% of opponents. He also induced grounders on 43.2% of balls in play.
Coming into 2026, Baseball America ranked him the #13 prospect in the system and FanGraphs had him 12th. He doesn’t have huge velocity, averaging just 91 miles per hour with his fastball these days, but both BA and FG highlight his excellent command. FG also highlights his vertical slot and his ability to hide the ball as part of his delivery. His full arsenal includes a four-seamer, sinker, slider, cutter, curveball and changeup.
He has continued to post good numbers this year, with five Double-A starts and two at Triple-A. Combined, he has thrown 37 innings with a 3.16 ERA, 26.5% strikeout rate, 7.9% walk rate and 44.4% ground ball rate. BA bumped him up to #10 in the system in today’s update.
The Mets are dipping into their depth due to the recent injury to Clay Holmes, who fractured his right fibula and might be sidelined into August. Christian Scott is starting tonight and Nolan McLean tomorrow. Wednesday would have been Holmes’s turn. The Mets have some long relief options on the roster, although Sean Manaea just tossed four innings behind Freddy Peralta yesterday. Tobias Myers has starting experience but hasn’t tossed more than three innings in any game this year.
Thornton will at least get a spot start. What remains to be seen is if he’ll get sent back to the minors after that or if he’ll stick around. For the next turn, they could put Manaea or Myers into the Holmes spot. They could also turn to someone else on the farm, such as Jonah Tong, Jack Wenninger or Jonathan Pintaro.
Photo courtesy of Jim Rassol, Imagn Images
Braves Designate José Azócar For Assignment
The Braves announced that outfielder Eli White has been reinstated from the ten-day injured list. Fellow outfielder José Azócar has been designated for assignment in a corresponding roster move.
Azócar, 30, signed a minor league deal with Atlanta in the offseason. He was added to the roster in May when Ronald Acuña Jr. hit the injured list. A few days later, they decided to promote infielder Jim Jarvis and move Mauricio Dubón to the outfield mix. Since Azócar is out of options, he was bumped off the 40-man. After clearing waivers, he quickly re-signed and then got added back to the roster in the wake of White hitting the IL.
Around those transactions, Azócar has put up good numbers. He has a .333/.375/.467 slash line but he surely wasn’t going to maintain that kind of production. He put up that line in a tiny sample of 16 plate appearances with a huge .417 batting average on balls in play. That’s nowhere near his career track record, which consists of 434 plate appearances with a .248/.293/.325 slash line.
Broadly speaking, Azócar is a glove-first depth outfielder. He gets good reviews for his defense and can steal a base from time to time but his offense has mostly been subpar. Atlanta clearly still views him that way and hasn’t been swayed by a few extra batted balls finding holes in the past few weeks.
Azócar now heads to DFA limbo again. Atlanta can take some time to explore trade interest but it’s possible he ends up back on waivers and clears, like he did a few weeks back, though it’s also possible a team with some recent injury trouble has a need for an extra outfielder and puts in a claim. If Azócar does clear again, he has the right to elect free agency since he has a previous career outright. That’s the way things played out earlier this month but Atlanta quickly re-signed him to a new minors deal.
Photo courtesy of Brett Davis, Imagn Images
Twins Grant Releases To Matt Bowman, John Brebbia
The Twins granted right-handers Matt Bowman and John Brebbia their releases Wednesday, per Dan Hayes of The Athletic and Jon Heyman of the New York Post. Both veteran relievers were pitching with the team’s Triple-A affiliate in St. Paul, and both triggered opt-out clauses in their contracts on Sunday. The Twins had until this afternoon to add one or both to the 40-man roster or allow them to become free agents. They’ve gone with the latter option in both cases.
Bowman, 34, has pitched in parts of seven big league seasons. That includes a 2024 run with Minnesota, during which he tossed 7 2/3 decent innings. He carries a 4.38 ERA in 240 2/3 major league innings split among seven clubs. Bowman has a below-average 18.7% strikeout rate but a solid 8% walk rate and a very strong 52.3% ground-ball rate. He’s been excellent in Triple-A thus far, totaling 21 1/3 innings with a 1.69 ERA, a 28.1% strikeout rate and a 6.7% walk rate.
Bowman doesn’t throw particularly hard, by today’s standards. He’s sitting 91.8 mph on his sinker this year, which is below average but a slight bit north of his career 91.3 mph mark. Bowman complements the pitch with a 90 mph cutter and a splitter and slider that both reside in the low 80s. He doesn’t overwhelm opponents but also has neutral platoon splits in his career; lefties have hit .249/.322/.402 against him, while righties are at .245/.307/.383.
The 35-year-old Brebbia has the lengthier MLB track record but hasn’t pitched as well in 2026 (or in general, over the past few seasons). He has eight years of major league service to Bowman’s five, and Brebbia has worked to a 4.04 ERA in 378 1/3 big league frames. Broadly speaking, he’s missed bats and limited walks at better-than-average levels (25.6% and 7.5%, respectively), but the past few years haven’t been kind to the well-traveled righty. He’s pitched 78 2/3 innings between three teams — White Sox, Braves, Tigers — and been rocked for a 6.41 earned run average. Home runs have been his Achilles heel during that time. He’s averaged 1.83 dingers per nine innings pitched.
Brebbia has tossed 20 1/3 innings with the Saints this year but stumbled to a 6.20 ERA that closely mirrors his major league work from 2024-25. He’s punched out more than 28% of his opponents but has also issued walks at a 10.9% clip and served up four homers (1.77 HR/9). He started the season brilliantly, allowing just one run with a 17-to-3 K/BB ratio in his first 10 2/3 frames, but Brebbia has since been tagged for 13 runs in 9 2/3 innings. All four of his homers allowed have come in that span, and he’s walked nearly as many batters (seven) as he’s set down on strikes (nine).
It’s still possible both players will return to the Twins. That’s relatively common for journeyman veterans who trigger midseason opt-out clauses. Heyman suggests that Bowman could have a major league offer waiting somewhere else, however, which wouldn’t be all that surprising with how well he’s pitched. If anything, it’s at least a mild surprise that the Twins themselves wouldn’t find a way to take a look at Bowman in the majors. Minnesota relievers have the third-worst ERA in baseball.
Rays Select Oliver Dunn
The Rays announced that they have selected the contract of just-acquired infielder Oliver Dunn from Triple-A Durham. He’ll take the active roster spot of fellow infielder Ben Williamson, who’s headed to the 10-day injured list due to a lower back strain. The Rays acquired Dunn from the White Sox in exchange for lefty Joe Rock last night.
Tampa Bay also reinstated veteran left-hander Steven Matz from the 15-day injured list and optioned righty Chase Solesky to Durham in a corresponding move. Matz will start today’s game, per the team.
Dunn, 28, doesn’t have an impressive big league track record but has been on a tear with the Sox’ top affiliate in Charlotte this season. He’s a .206/.261/.290 in parts of two seasons (145 plate appearances) with the Brewers, but Dunn has raked at a .295/.393/.545 clip with the Knights this season. He’s connected on nine homers, gone 9-for-10 in stolen base attempts and walked at a stout 13.1% clip (against a 23.5% strikeout rate).
Dunn gives the Rays a left-handed bat with some versatility to step in for Williamson, who’s seen time at second base, shortstop and third base for the Rays this season while batting .268/.349/.349 (99 wRC+). Dunn hasn’t played shortstop in the majors but has 262 minor league innings there (196 across the past two seasons). He has ample experience at third base and second base in addition to more limited work in left field and at first base.
Rays, White Sox Swap Joe Rock For Oliver Dunn
The Rays and White Sox announced a one-for-one trade that sends lefty reliever Joe Rock from Tampa Bay to Chicago. Minor league infielder Oliver Dunn goes to the Rays; Dunn had not been on Chicago’s 40-man roster.
Chicago optioned Rock to Triple-A Charlotte and transferred Kyle Teel to the 60-day injured list to open a 40-man spot. That’s a procedural move, as the 60-day window backdates to Opening Day. Teel won’t be back until late June at the earliest after suffering an LCL sprain in his left knee over the weekend.
A 6’6″ southpaw, Rock was a second-round pick by Colorado in 2021. The Rays acquired him in Spring Training 2024 for former first-rounder Greg Jones. Rock spent that season working out of the Triple-A rotation, struggling to a 4.58 earned run average. He made a very brief MLB debut last summer, pitching 7 2/3 innings of two-run ball with 11 strikeouts over three appearances.
Rock otherwise spent the season in a swing role in Triple-A, posting a 5.21 ERA across 96 2/3 frames. The Rays moved him to short relief this year in the hope that his stuff would play up in 1-2 inning stints. Rock has missed more bats, striking out 27 of 78 opponents (34.6%) in the minors.
His 92.9 mph average fastball isn’t much above where it sat last year, though, and Rock has battled the worst control of his career. He has walked 17 batters and plunked four more, giving out free passes to more than a quarter of batters faced. Rock has allowed 10 runs (nine earned) through 15 Triple-A innings this year.
The lack of strikes had pushed the Ohio University product to the fringe of the roster. The Rays didn’t designate Rock for assignment but had soured enough on him that they were willing to deal him for a depth infielder on a minor league contract. Chicago will see if a change of scenery can get him on track. Rock is in his second of three option years, so there’s still some roster flexibility.
Sean Newcomb and Bryan Hudson have pitched well as Will Venable’s top two lefty relievers. The Sox brought Brandon Eisert back up from Charlotte last week as a third southpaw in the MLB bullpen. Tyler Schweitzer, Tyler Gilbert and Chris Murphy are on the 40-man roster and on optional assignment. The Sox certainly aren’t lacking left-handed bullpen arms.
Dunn is a 28-year-old utilityman who appeared at the MLB level with the Brewers from 2024-25. The lefty batter owns a .206/.261/.290 slash with one home run in 145 career plate appearances. Milwaukee sent Dunn unclaimed through waivers last September and allowed him to walk as a minor league free agent. He signed a non-roster deal with the Sox in December.
After struggling to a .208/.315/.338 line in Triple-A a year ago, Dunn has gotten out to a much better start this season. He hit .296/.397/.533 with eight homers in 40 games for Charlotte. Dunn takes a lot of pitches and had shown strong on-base numbers up through Double-A. He’s primarily a third baseman who can play the middle infield if necessary and has some left field experience in the minors.
The Rays recently lost one of their left-handed bench bats when Jake Fraley suffered a sports hernia injury that required surgery. They’re also a little shorthanded in the infield with Ben Williamson day-to-day with back tightness. Tampa Bay might add Dunn directly to the MLB bench if Williamson requires an injured list stint. They don’t have any depth infielders on optional assignment to Triple-A, and Dunn has outhit internal non-roster pieces Logan Davidson and Raynel Delgado. Tampa Bay has a pair of openings on the 40-man roster if they want to select Dunn’s contract.
Guardians Re-Sign Kolby Allard To Minor League Deal
The Guardians are bringing left-hander Kolby Allard back on a minor league contract, reports Tim Stebbins of MLB.com. Cleveland had granted the southpaw his release yesterday, but it seems Allard didn’t find an MLB opportunity with another club.
Cleveland’s front office and coaching staff clearly appreciates what Allard brings to the table as a depth arm. He’s capable of working multiple innings and held a low-leverage relief spot for the majority of the 2025 season. Allard worked to a 2.63 ERA across 65 innings a year ago despite sitting 90 mph with his fastball and running a well below-average 15.8% strikeout rate.
Allard fills up the strike zone but has fringy stuff. He has given up 16 hits to allow 10 runs across 8 2/3 MLB frames this year. He has pitched three times with Triple-A Columbus, surrendering seven runs with an uncharacteristic seven walks over 5 1/3 innings. The Guardians have signed him to five minor league contracts over the past two seasons.
Diamondbacks Place James McCann On IL, Select Aramis Garcia
The Diamondbacks announced that catcher James McCann has been placed on the 10-day injured list with a strained right quad. Fellow catcher Aramis Garcia has been selected to take his place on the roster. The Snakes had a couple of 40-man vacancies, with Garcia filling one of them.
McCann, 36 next month, was signed to a $2.75MM deal to serve as a veteran backup to Gabriel Moreno. McCann has appeared in 22 games with a .203/.217/.254 line and questionable defensive metrics.
Arizona has been rostering three catchers for most of the season. Adrian Del Castillo has done some catching but has been seeing a lot of time in the designated hitter slot, even though he hasn’t been living up to that designation, with a .185/.232/.326 line and 33.3% strikeout rate this year.
It seems the Snakes prefer to keep that three-catcher system going. Earlier this year, when Moreno required a stint on the IL, they added Garcia to the roster. He was mostly there for emergencies, as he spent over two weeks on the roster but only made three plate appearances. When Moreno came off the IL, the out-of-options Garcia was designated for assignment and outrighted back to Triple-A Reno.
It’s possible Garcia is slated for a similar experience now. While McCann is out, the Snakes will continue to have Moreno as their primary catcher, with Del Castillo a backup/DH. Garcia will be there for late-game substitutions or if someone gets hurt. Garcia has just a .210/.245/.321 line in his career but the Diamondbacks obviously value his defense and/or the work he does with pitchers. He was selected to their roster twice last year and this is now already his second selection of 2026.
Photo courtesy of Mark J. Rebilas, Imagn Images
Cubs Designate Ty Blach For Assignment
The Cubs have designated left-hander Ty Blach for assignment, per Jordan Bastian of MLB.com. His spot on the roster goes to fellow southpaw Caleb Thielbar, who has been reinstated from the injured list.
Blach signed a minor league deal with the Cubs last month and was selected to the big league roster Sunday. That marked his first time on a big league roster since 2024. The 35-year-old handled himself well, tossing three shutout innings yesterday against the Brewers. Blach allowed only one hit, didn’t walk anyone, and punched out two of the nine batters he faced. In addition to his three sharp big league innings, Blach has pitched well in four of his five appearances with the Cubs’ top affiliate in Des Moines. He has a 5.23 ERA overall in 20 2/3 innings there, though most of the damage against him came in one start that saw him tagged for six runs in 3 2/3 innings.
With yesterday’s Cubs appearance, Blach has now pitched in parts of eight big league seasons with four different teams. The majority of that experience came with the Giants, who drafted him out of Creighton with their fifth-round pick back in 2012. Blach tossed 299 1/3 frames of 4.36 ERA ball with San Francisco from 2016-18. He then made five starts for the 2019 Orioles and spent the 2022-24 seasons with the Rockies.
Since that solid Bay Area run back in ’16-’18, Blach has been hit hard, yielding a 6.76 ERA in 223 2/3 innings. Part of that stems from calling Coors Field his home for several years, of course, but Blach is also a soft-tossing lefty who’s never missed many bats and has to rely on weak contact and precise command. There’s not much margin for error with a pitch-to-contact lefty who’s sitting 89.8 mph with his sinker and pitching half his games at altitude. That said, Blach did average 91.1 mph on that sinker in yesterday’s appearance — right in line with his velocity from his early days with the Giants.
The Cubs have five days to trade Blach, place him on outright waivers or release him. If he goes unclaimed, he’ll have the opportunity to accept an outright assignment with Chicago, though he also has the right to reject an outright in favor of free agency if he prefers that route.
Thielbar has missed nearly a month with a hamstring strain. The 39-year-old lefty had a terrific season with the Cubs in his age-38 campaign last year (2.64 ERA, 58 innings) and re-signed on a one-year, $4.5MM contract in free agency. He allowed three earned runs on six hits (two of them homers) and five walks with 11 strikeouts in 8 2/3 frames before hitting the injured list.
White Sox Release Osvaldo Bido To Pursue Opportunity In Japan
The White Sox have released right-hander Osvaldo Bido, according to his transactions tracker at MLB.com. The righty is pursuing an opportunity in Japan, per Brooke Fletcher of Chicago Sports Network. Edwin Hernández Jr. reports that Bido will sign with the Yokohama DeNA BayStars.
Several clubs have been trying to pass Bido through waivers over the past year. He burned his final option season with the Athletics in 2025, which led to him riding the transaction carousel all winter and into the 2026 campaign. His first offseason waiver claim took him to Atlanta, followed by claims taking him to the Rays, Marlins, Angels, Yankees, and then back to Atlanta. A few weeks into the season, another waiver claim took him to the White Sox.
All those teams seemingly valued Bido enough to claim him but also hoped they had a chance to keep him in a non-roster capacity. The Sox have now finally succeeded in getting him through waivers but won’t be keeping Bido in the system. Teams generally don’t stand in the way of their players pursuing overseas opportunities, unless they have a better opportunity to provide.
Bido flashed some potential with the A’s in 2024, tossing 63 1/3 innings in a swing role with a 3.41 earned run average. His 10% walk rate was a bit high but he struck out 24.3% of batters faced. He also had a bit of help from the spacious ballpark in Oakland, as only 3.8% of his fly balls left the yard.
Moving to the hitter-friendly environment in West Sacramento didn’t help him. 14.7% of his fly balls cleared the fence in 2025, pushing his ERA to 5.87. That got him sent to the minors, burning his final option. Between Atlanta and Chicago this year, he couldn’t get back on track, with a 6.27 ERA.
Japan’s Nippon Professional Baseball has been fairly pitcher-friendly in recent years, so perhaps a stint there is a good landing spot for Bido. If he gets back on track and puts up some good numbers, he can try to return to North American ball in the future.
Photo courtesy of Mark J. Rebilas, Imagn Images
Mets Select Anderson Severino
The Mets announced that they have selected the contract of left-hander Anderson Severino. He has been optioned to Triple-A Syracuse, so he will stick with that club, but he is now on the 40-man and will be a candidate to be recalled to the active roster going forward. Pitchers have to wait 15 days after being optioned before they can be recalled, though exceptions are made when someone else hits the injured list or a club needs a 27th man for a doubleheader. Right-hander Clay Holmes was transferred to the 60-day injured list in a corresponding move 40-man move. Holmes recently suffered a fibula fracture and is expected to be out of action until August.
The announcement from the Mets said that Severino was optioned after last night’s game, so the Severino/Holmes moves seemingly happened yesterday. The Mets also officially announced today’s earlier-reported outfield moves, with Austin Slater designated for assignment and Nick Morabito recalled. Those moves drop the 40-man count to 39, so the club has an opening for Zach Thornton, who is going to be selected on Wednesday. Thornton will fill the 40-man tomorrow but the Mets will need to make a corresponding active roster move for him.
Severino, 31, signed a minor league deal with the Mets in the offseason. It’s possible that the pact contained some kind of opt-out or assignment clause. That usually explains why a club would add a player to its 40-man roster and then immediately option him. Giving him a spot prevents him from opting out or getting sent elsewhere, but also doesn’t require the club to immediately call the player up, which would then require a corresponding move. There have also been a few cases where a player has been given a roster spot to prevent him from pursuing an opportunity overseas.
Whatever the reasoning, it’s understandable that the Mets don’t want Severino to get away, as he is out to a hot start. He has thrown 17 1/3 Triple-A innings so far this year, allowing just 1.04 earned runs per nine. His 12.1% walk rate is quite high but he has punched out 27.3% of batters faced and induced grounders on 52.6% of balls in play. His ERA has gotten some help from a .231 batting average on balls in play and 83.3% strand rate but Severino’s 3.00 FIP suggests he would be getting good results even with more neutral luck. His fastball is averaging just over 96 miles per hour and he’s throwing a mid-80s slider almost a third of the time, along with a rarely-used curve.
It’s not the first time Severino has posted good numbers in the minors but he has only received a brief look the majors. His big league track record currently consists of just 7 1/3 innings tossed for the White Sox in 2022.
He is not quite back to the majors just yet but he is now in a good position to return to the show for the first time in four years. The Mets have two lefties in their bullpen at the moment but one of them is long man Sean Manaea, meaning that Brooks Raley is effectively the only proper southpaw reliever. If they want to add another lefty or just need a fresh arm at some point in the future, Severino is now on the 40-man and could get the call.
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