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MLB Mailbag: Williams, Trade Deadline, Valdez, Keith, Red Sox, Muncy, Jays’ Outfield
It's time for another installment of our weekly MLB Mailbag. I'm pinch-hitting for Tim Dierkes once more this week before he takes back over next week. In today's mailbag, we'll look at Devin Williams' signature changeup, a group of potential first base targets on the trade market and what they might cost, Framber Valdez's earning power, Colt Keith's role in Detroit, the Red Sox' struggles and Rafael Devers' future, the Dodgers' third base outlook and Toronto's collection of outfielders. Let's dive in.
Elden asks:
I admittedly never followed Devin Williams before the NYY acquired him but isn't it odd to have a closer so heavily reliant on changeups? What is the current timeline to get Weaver back?
It's odd, yes, but when said changeup is arguably the best pitch in baseball since Williams' debut, it's hard to argue with the approach. First, let's look at historical changeup usage by Williams.
Sports Info Solutions began tracking pitch types back in 2002. Since the 2002 season, there have been 6500 individual seasons by relievers with more than 20 innings thrown. Only 20 of them have seen a reliever deploy his changeup at a 50% clip or higher. Williams has five of those. Tommy Kahnle has four of them.
Williams isn't the only reliever to make a career out of a lethal changeup, of course. Trevor Hoffman rode his changeup to the Hall of Fame. Francisco Rodriguez and Fernando Rodney had dominant changeups at their peaks. None threw their changeup even close to as frequently as Williams, however. Broadly speaking, yes, it's quite rare for relievers to be this reliant on changeups. It's rare for relievers to even have a changeup as their go-to secondary offering; fastball/slider combos have been en vogue for years and remain so.
Statcast and its pitch tracking data were rolled out in all 30 MLB parks back in 2015. Since 2015, Williams' "Airbender" unsurprisingly grades out as the best changeup in the sport, but it's also the eighth-most valuable pitch overall. The only individual pitches that carry greater value in that time are (in order): Kenley Jansen's cutter, Josh Hader's sinker, Chad Green's four-seamer (!!), Edwin Diaz's slider, Zack Britton's sinker, Emmanuel Clase's cutter and Liam Hendriks' four-seamer. Of course, it bears mentioning that Jansen, Hader, Green, Hendriks and Diaz have all pitched far more in that decade-long window than Williams, who only debuted in 2019.

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Jackson Jobe To Undergo Tommy John Surgery
Tigers right-hander Jackson Jobe will undergo Tommy John surgery. Evan Petzold of the Detroit Free Press was among those to relay the news. He’ll miss the remainder of his season and possibly all of 2026 as well. He is already on the 15-day injured list but will be transferred to the 60-day IL whenever the Tigers need to open a roster spot.
The news is obviously brutal for both Jobe and the Tigers. Jobe, third overall pick of the 2021 draft, was one of the top pitching prospects in the league as he climbed the minor league ladder. The Tigers called him up late last year to factor into their postseason run even though he was only 21 years old. He got to make two regular season appearances and then two more in the postseason.
He came into this year as a member of the rotation. He wasn’t exactly dominant, with a 4.22 earned run average, 17.9% strikeout rate and 12.4% walk rate through ten starts. However, that’s a small sample of work and he’s also still quite young.
It’s also possible, in the wake of this news, that he wasn’t fully healthy. His velocity was down in his final start and the Tigers placed him on the 15-day IL a couple of weeks ago with a flexor strain. Now it seems the determination has been made that he’ll need to go under the knife. Tommy John surgery usually requires 14 to 18 months of rehab. Given that window, Jobe will miss the remainder of the year and a return in the second half of 2026 can’t be guaranteed either.
For Jobe, it’s obviously a gut punch for him to lose most of his age-22 season and potentially all of his age-23 campaign. For the Tigers, they are going to lose almost two whole seasons of their six-year window with Jobe.
They will have to proceed without him in their plans for the foreseeable future. Their current rotation consists of Tarik Skubal, Jack Flaherty, Casey Mize, Keider Montero and Sawyer Gipson-Long. They could get Alex Cobb into the mix soon, as he’s currently on a rehab assignment. Reese Olson is out with a finger issue that doesn’t seem terribly serious. Jose Urquidy had Tommy John surgery around this time last year and could be a factor later in the year. Ty Madden has a rotation cuff strain and could also return from the IL later this year.
Most of that group will be in the mix for the 2026 rotation as well. Cobb is the only one fully slated for free agency. Flaherty has a player option for 2026 and could decide to return to the open market. The Tigers have a club option for Urquidy’s services for next year. It’s also possible that the Tigers change this picture via trades ahead of this year’s deadline.
Photo courtesy of Junfu Han, Imagn Images.
MLBTR Podcast: White Sox Ownership, Roman Anthony, And The Diamondbacks’ Rotation
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 Steve Adams of MLB Trade Rumors to discuss…
- The White Sox getting a new owner, at some point in the future (1:10)
- The Red Sox promoting Roman Anthony (13:25)
- Corbin Burnes undergoing Tommy John surgery and where that leaves the Diamondbacks (23:20)
- The Mariners designating Leody Taveras for assignment (34:10)
Plus, we answer your questions, including…
- Do the Mariners need a left-hander in the rotation? (40:45)
- What will the Braves do with the rest of the season and would they trade Chris Sale? (45:30)
- With the Mets seemingly having too many young infielders, who stays and who goes? (53:35)
Check out our past episodes!
- Jarren Duran Rumors, Caglianone And Young Promoted, And Pitching Injuries – listen here
- Bregman Injured, Marcelo Mayer Called Up, And Pirates Talk – listen here
- The Disappointing Orioles, Dalton Rushing, And The Phillies’ Bullpen – listen here
The podcast intro and outro song “So Long” is provided courtesy of the band Showoff. Check out their Facebook page here!
Photo courtesy of Kamil Krzaczynski, Imagn Images
Shane McClanahan Pauses Rehab, Seeking Further Opinions On Nerve Issue
The Rays were dealt a frustrating blow this evening, as Marc Topkin of the Tampa Bay Times reports that southpaw Shane McClanahan has paused his throwing progression and is seeking additional medical opinions on the nerve issue in his triceps that’s kept him sidelined since Spring Training. The decision came after McClanahan was “not feeling 100%” during his first full-distance bullpen session. Manager Kevin Cash described the situation to reporters (including Topkin) as McClanahan being “kind of in shutdown mode.”
It’s tough news for Rays fans, as the talented left-hander was eyeing a return in late July as recently as last week. McClanahan hasn’t pitched in the majors since 2023 due to Tommy John surgery and the aforementioned nerve issue, but emerged as one of baseball’s most talented young starters during his three seasons in the league from 2021-23. He sports a career 3.02 ERA and 3.36 FIP across 404 2/3 innings of work. His resume also includes a fantastic 28.0% career strikeout rate and a 46.8% ground ball rate for his career.
Not being able to lean on McClanahan’s incredible talent at the top of the rotation last year is a major part of why the Rays stumbled to an 80-82 record and missed the postseason. Things are going better this year, as Tampa’s 36-31 record puts them in the second of the AL’s three Wild Card spots, just five games back of the Yankees for the AL East lead. The contributions of young bats like Jonathan Aranda and Junior Caminero have been key to the club’s success this year, and while Drew Rasmussen has done an admirable job as the team’s ace this year the Rays were surely counting on the return of McClanahan to help lift them down the stretch.
Outside of Rasmussen and a decent mid-rotation showing from Ryan Pepiot, the Rays haven’t gotten the best results from their rotation this year. Taj Bradley and Shane Baz have both been below-average pitchers this season, while Zack Littell has posted average results with shaky peripherals. A perennially changing but always talented cast of characters led by Pete Fairbanks in the bullpen has been excellent as always, but a strong bullpen can only do so much to prop up a rotation that lands in the bottom ten in baseball with a lackluster 4.35 FIP. It’s at least possible that McClanahan’s search for additional opinions will confirm that he’s ready to resume ramping up and this will be only a minor setback in his rehab, but for a pitcher who was already not guaranteed to return before August there’s real reason for concern that he could run out of time to get back before the end of the regular season in late September.
Should the Rays manage to keep the good times rolling and enter July as trade deadline buyers, the news regarding McClanahan seems likely to further amplify their need for rotation help. Tampa offloaded veteran rotation pieces Aaron Civale and Zach Eflin at last summer’s deadline, but adding a similar mid-rotation veteran to this pitching staff would go a long way to bolstering the rotation. Eflin himself could be on the market once again depending on how the Orioles decide to approach trade season in the midst of a nightmare year, and other pieces who could at least theoretically move this summer include players like Andrew Heaney, Tyler Mahle, Walker Buehler, and Zac Gallen although many of those players play for teams on the fence between buying and selling this summer.
Yankees Considering Starts For Ben Rice At Catcher
The Yankees are set to welcome Giancarlo Stanton back from the injured list in the relatively near future. Bringing the slugger back into the fold can only be a good thing for the offense overall, but it does create one major issue for the team: finding playing time for breakout DH Ben Rice. With Stanton set to reclaim DH on a regular basis and Paul Goldschmidt entrenched at first base for the time being, it’s going to be difficult for Rice to get the same level of playing time he has to this point in the season.
Losing him as a regular in the lineup would be a shame, however, as the 26-year-old has slashed an excellent .240/.326/.495 with a wRC+ of 130 across 57 games this year. That’s already not been quite an everyday role due to the outfield logjam created by the emergence of Trent Grisham in an outfield that was already committed to Jasson Dominguez and Cody Bellinger as regulars alongside Aaron Judge, but Rice has still been a fixture of the club’s lineup this year.
There have been some indications that Stanton may not start every single day upon his return in order to keep him healthier throughout the remainder of the year and allow Rice to get keep getting starts, but Jack Curry of the YES Network relays that Aaron Boone told reporters today that Rice could get some starts behind the plate when Stanton returns. It comes as a bit of a surprise since Rice hasn’t made a start at catcher this season, but it’s not entirely out of left field. Rice has continued to do pregame work as a catcher this season even as he’s settled into a DH and backup first base role, and of course spent the majority of his time in the minor leagues as a catcher.
Austin Wells has held his own behind the plate this year with a .227/.294/.476 (111 wRC+) slash line in 56 games, but Rice undeniably has a bigger bat. Getting the slugger even one start a week behind the plate would significantly improve his path towards significant playing time in the lineup, as it would allow Goldschmidt and Stanton to both start the majority of games at first base and DH respectively while still allowing Rice to remain at least a half-time player. Of course, it’s possible a catcher experiment could be short-lived for Rice if he proves to be a liability defensively behind the plate, but it’s still an exciting opportunity for the youngster to prove himself capable at his natural position and earn more playing time down the stretch this year.
Whether Rice will continue to get a more extended look as a semi-regular option behind the plate remains to be seen. It seems likely that J.C. Escarra will continue to remain on the roster as a more traditional backup for Wells given the fact that Rice figures to continue being in the DH mix on a regular basis. It’s not impossible to imagine that changing if Rice takes to the position especially well, but it’s also possible that an injury to Stanton or Goldschmidt at some point could create an opening for Rice elsewhere that pushes him off the position. When talented young players are blocked within their current organization, that often leads to trade speculation as the deadline approaches. It seems unlikely that the Yankees would consider going down that path with Rice, however, given that Goldschmidt is set to reach free agency after this season and Rice looks to be a fairly natural choice to take the reins at first base in 2026.
Dodgers Moving Ben Casparius To Starting Rotation
After a dominant start to the season as a reliever, right-hander Ben Casparius is set to get an opportunity to prove himself as a starter with the Dodgers. Initially tabbed as an opener for a bullpen game against the Padres today, manager Dave Roberts revealed to reporters (including Fabian Ardaya of The Athletic) before today’s game that Casparius could be stretched out further to operate as a starting pitcher while the club is short-staffed due to the recent loss of Tony Gonsolin. After today’s outing, where he threw four innings of one-run ball, Roberts announced that Casparius’s next outing would be as a starter, as relayed by MLB.com’s Sonja Chen.
It’s hard to argue Casparius hasn’t earned a look in a larger role, as he’s done nothing but produce in the majors for the Los Angeles. The club’s fifth-rounder back in 2021, Casparius made his big league debut last August and immediately delivered with a 2.16 ERA and 1.73 FIP across 8 1/3 innings of work down the stretch. After debuting just in time to be eligible for the postseason, Casparius was a part of the Dodgers’ playoff roster mix during last October’s World Series run and continued to deliver on the biggest stage with a 1.42 ERA in 6 1/3 postseason innings against the Mets and Yankees.
This year, it’s been more of the same over a much larger sample size. His 44 innings of work this season have seen him produce a 2.86 ERA with a 1.89 FIP while striking out 26.0% of his opponents and walking just 5.1%. Those numbers are nothing short of brilliant, and while Casparius hasn’t ever been challenged with facing the opposing lineup a third time in his career he maxed out at 70 pitches earlier this year and threw 54 in today’s outing, suggesting he’s not too far from being fully stretched out to start. Even if the Dodgers don’t want to use him much deeper in games than the fifth inning, it’s easy to see the logic in giving Casparius this opportunity given the other options the club has at its disposal at the moment.
With key arms like Blake Snell, Tyler Glasnow, Roki Sasaki, and Gonsolin among the eight starting pitchers presently on the injured list and Shohei Ohtani still at least a few weeks out from pitching in big league games, the Dodgers need to turn to their depth options to fill out the rotation behind Dustin May, Clayton Kershaw, and Yoshinobu Yamamoto. Justin Wrobleski had previously gotten the opportunity to be the fourth starter behind that trio, but the lefty has a 7.20 ERA in 15 innings of work at the big league level this year. Bobby Miller (12.60 ERA) and Landon Knack (5.12 ERA) have also struggled in their own limited opportunities at the MLB level, and the only other starter on the 40-man roster at present is right-hander Nick Frasso. Frasso not only hasn’t yet made his MLB debut, but he’s struggling badly with a 5.31 ERA in 42 1/3 innings of work at Triple-A this year.
With so few quality starting options presently at the club’s disposal, giving Casparius a chance to build on today’s strong (albeit brief) start against San Diego is practically a no-brainer. Even so, it’s difficult to imagine Casparius pitching himself into a completely permanent role in Los Angeles’s rotation; with so many talented arms in the organization ahead of him on the depth chart, he’ll likely need additional injuries to crop up if he hopes to remain in a rotation role even after ace-level pitchers like Snell and Glasnow return from the injured list.
Red Sox Outright Robert Stock
The Red Sox announced today that right-hander Robert Stock cleared waivers and has been outrighted to Triple-A. He was designated for assignment by the club earlier this week.
It’s the second time the 35-year-old has been outrighted to the minors by Boston this year. He previously threw two innings for the club in an appearance earlier this year and was outrighted off the 40-man roster shortly thereafter. It was a similar story this time around, as he spent just two days on the roster and made a single appearance before being cut from the club’s roster.
Drafted by the Cardinals in the second round of the 2009 draft, Stock didn’t make his big league debut until he was with San Diego in 2018. Stock was nothing short of excellent in his first taste of the majors with a 2.50 ERA and 2.71 FIP across 39 2/3 frames. Unfortunately, he’s never come close to that in the majors in the years since. While pitching for the Padres, Red Sox, Cubs, and Mets from 2019 to 2021, he surrendered a 7.36 ERA and 5.50 FIP in 33 innings of work. Following the 2021 season, Stock departed affiliated ball to pitch as a starter for the KBO League’s Doosan Bears throughout the 2022 campaign.
That stop in South Korea went fairly well for Stock, as he posted a 3.60 ERA in 165 innings of work. Even that solid figure pales in comparison to the top imported arms in the KBO league, though, so it wasn’t exactly a shock when he didn’t return to the Bears for 2023. Instead, he wound up pitching for the Atlantic League’s Long Island Ducks and the Mexican League’s Tecolotes de los Dos Laredos (along with a brief stint in the Brewers’ minor league system) in 2023 and ’24 before he settled back in with the Red Sox at Triple-A Worcester this year. He’s posted a 3.09 ERA for the WooSox in 55 1/3 innings of work across 12 appearances last year, nine of which have been starts.
Those strong results at Triple-A obviously haven’t translated to results at the big league level, where Stock has surrendered three runs in 2 2/3 innings of work this year while walking four batters and striking out just one. Lackluster as Stock’s results have been at the big league level, however, there’s always a place for a versatile veteran capable of eating innings out of either the rotation or bullpen as necessary on a club’s minor league depth chart. Given that, it’s hardly shocking that the Red Sox decided to outright the right-hander to the minors and keep him in the fold as an emergency depth option who they can call back up to the majors when they need an extra arm to provide some length out of the bullpen or an emergency starter. Until that happens or the 2025 campaign comes to a close, Stock figures to remain a member of the Triple-A pitching staff who provides non-roster depth for Boston going forward.
Angels Sign Chad Wallach To Minor League Deal
The Angels have signed catcher Chad Wallach to a minor league deal, according to his transactions tracker at MLB.com. He had previously been with the Rangers on a minor league deal but was released a few days ago.
Wallach, 33, is a known commodity for the Halos. He got into 77 games for them over the 2022 and 2023 seasons. He also spent last year at Triple-A Salt Lake on a minor league deal but didn’t get called up.
He pivoted over to the Rangers at the start of this year and got into 28 games for Triple-A Round Rock. He struck out 27.2% of the time but also walked at a strong 11.4% clip and hit four home runs. That added up to a .245/.333/.408 line and 89 wRC+.
Wallach faced a steep path to playing time in Texas, where Jonah Heim and Kyle Higashioka are the primary catching duo. Even when Higashioka went on the injured list earlier this year, it was Tucker Barnhart who got the call to cover for him. Higashioka subsequently returned from the IL and Barnhart was bumped off the roster but quickly re-signed on a new minor league deal.
The Angels have Logan O’Hoppe and Travis d’Arnaud at the big league level. For much of the season, they had Chuckie Robinson at Salt Lake on an optional assignment, but he was lost to the Dodgers via waivers a couple of weeks ago. Though Wallach is not on the roster, he essentially replaces Robinson as the top option to get called up if either O’Hoppe or d’Arnaud suffers an injury.
Including his time with the Angels, Wallach has also suited up for the Reds and Marlins. He has 155 big league games under his belt over seven separate seasons. He has a .198/.263/.328 batting line but solid defensive grades.
Image courtesy of Dale Zanine, Imagn Images
Giants Select Logan Porter, Designate Osleivis Basabe For Assignment
The Giants have selected catcher Logan Porter to their roster. Fellow backstop Patrick Bailey goes on the 10-day injured list with a neck strain, retroactive to June 8. Infielder Osleivis Basabe has been designated for assignment as the corresponding move. Susan Slusser of the San Francisco Chronicle was among those to relay the moves.
It doesn’t appear as though Bailey is facing a lengthy absence. He was initially in Tuesday’s lineup but was scratched due to neck spasms. Not even half an hour before this news dropped, Bailey wasn’t sure if he would actually be going on the IL or not, per Slusser. Manager Bob Melvin also said they were hoping to have Bailey in the lineup by tomorrow, per Slusser. Instead, it seems the club has decided to give Bailey some time to rest up. Since the move has been backdated by three days, he could be back in a week.
Bailey is one of the best defensive catchers in the game but has struggled badly at the plate this season. In 180 plate appearances, he has a .185/.246/.272 batting line and 46 wRC+. The Giants will surely miss his glovework but it’s possible the lineup will get a boost.
Suddenly, the club’s catching corps looks totally different from earlier in the year. Bailey was sharing the position with Sam Huff for most of the season but the Giants swapped in Andrew Knizner for Huff a week ago. Huff was outrighted to Triple-A Sacramento but the club has opted to select Porter instead of bringing Huff back.
Porter, 29, has just 38 major league plate appearances. He hit .194/.324/.323 in those trips to the plate, which came with the 2023 Royals. He has put up good offensive numbers at the Triple-A level but has been inconsistent. He slashed .301/.452/.451 for a 148 wRC+ in 2022 but that dropped to a .232/.339/.377 line and 80 wRC+ in 2023. Last year, he bounced back with a .267/.370/.453 showing and 113 wRC+ but he’s down to a .237/.350/.319 line and 89 wRC+ this year.
He may not get much playing time. Knizner has 296 big league games under his belt and doesn’t have great offensive numbers, with a .208/.277/.314 line. However, he was hitting .378/.512/.520 in the minors this year before getting called up. Between that and his experience, he might get a bit more trust to handle things for Bailey’s absence. The fact that Knizner has had a one-week headstart in working with the Giants’ pitching staff should only help. Porter has a full slate of options and can easily be sent back down to Sacramento when Bailey returns.
Basabe, 24, was acquired from the Rays in an offseason cash deal. He has played 53 Triple-A games this year with a tepid .242/.287/.352 line and 69 wRC+. He was once a notable prospect thanks to some big numbers in the lower levels. However, his bat has cratered since reaching the top rung of the minor league ladder. In 213 Triple-A games, he has a .269/.319/.381 line, as well as a .218/.277/.310 showing in his 94 major league plate appearances.
He’ll now head into DFA limbo, which can last as long as a week. The waiver process takes 48 hours, so the Giants could take five days to explore trade possibilities. Basabe can be optioned for the rest of this year but will be out of options in 2026. If the Giants pass him through outright waivers, he could stick with the club as non-roster depth.
Photo courtesy of Rick Scuteri, Imagn Images