Mariners Unlikely To Trade From Top Five In Rotation
Despite countless rumors over the years, the Mariners have long been resistant to the idea of trading from their strong rotation. The stance looks to continue at this year’s deadline, as Adam Jude of the Seattle Times writes that the M’s “have given no indication they are willing to move any of their top five starting pitchers this summer.” That being said, Jude speculates that “come July…Luis Castillo’s name figures to resurface in trade chatter.”
The caveat underlines the fact that Castillo is simply no longer viewed as one of the Mariners’ best rotation options. This was reflected when Castillo was twice used as a piggyback starter behind Bryce Miller once Miller returned from a season-opening stint on the 15-day injured list. Emerson Hancock pitched so well in Miller’s regular rotation spot that the M’s kept him on a regular turn, and instead opted for the piggyback strategy on a temporary basis. This didn’t entirely sit well with Miller or Castillo, but the Mariners then moved to a six-man rotation that they’ll employ until the middle of June, once the club is through a busy stretch of the schedule.
It remains to be seen how the M’s will re-adjust back to a five-man rotation at that point, particularly since Castillo has looked a little more like his old self after a rough start to the season. Castillo has allowed one earned run over his last nine innings of work, though his ERA still sits at 5.53 over 55 1/3 total frames. Castillo’s 4.08 SIERA is much more palatable and his walk and strikeout rates are around league average, but the veteran right-hander has also allowed a ton of hard contact.
Most teams would be more than satisfied with this sort of production from a back-end starter, yet Seattle is in the enviable position of having too many starters for too few rotation slots. Beyond Hancock’s breakout, George Kirby, Logan Gilbert, and Bryan Woo are all pitching well, and Miller has looked tremendous since his return. If this wasn’t enough starting depth, the M’s have a few starters (i.e. Dane Dunning, Randy Dobnak, Jhonathan Diaz, Casey Lawrence) with MLB experience down at Triple-A Tacoma, plus there has been speculation that top prospect Kade Anderson could go from Double-A to the majors before 2026 is over.
Dipping too far down the depth chart has never held much appeal for the Mariners, however, though Hancock’s emergence has been a big help on that front. The “you can never have enough pitching” mantra rings especially loudly for a team aiming to make a World Series run, so the M’s would be hesitant to move even Castillo unless they were sure they had enough starting pitching to cover a lot of extra postseason innings.
Castillo’s contract is another reason why the veteran has been the starter the Mariners have at least been open to moving, even as rival teams have surely asked more about the younger and more controllable arms. Castillo is owed roughly $14.6MM for the remainder of the 2026 season, $22.75MM in 2027, and a $25MM option for 2028 will vest if Castillo pitches at least 180 innings in 2027 and finishes the season healthy.
The no-trade protection that existed in Castillo’s extension is now up, so he can be dealt without his approval. That removes one potential obstacle to a deal, though the price tag remains steep for a 33-year-old pitcher who might be a mid-rotation starter at best at this stage of his career. Seattle probably doesn’t have interest in eating much or any of Castillo’s salary, and trading Castillo for another player with a hefty contract only has limited appeal, unless the M’s felt this hypothetical player would help will another need (probably on offense).
AL West Notes: Miller, Castillo, Langford, Rangers, Moore
Bryce Miller will start and Luis Castillo will again be the piggyback pitcher for the Mariners on Sunday, but the team will then adopt a six-man rotation, the Seattle Times’ Adam Jude writes. Friday’s game with the Diamondbacks kicked off a stretch of 16 games in 17 days for the Mariners, so shifting back to a six-man rotation will help keep the entire pitching staff fresh. The rotation plan will then be re-evaluated on June 15 (Seattle’s next off-day), and sticking with the six-man format could be an option, if the M’s don’t again use two starters in a piggyback set-up.
Simply establishing a plan for the next couple of weeks is a positive step for the Mariners, as both Miller and Castillo weren’t pleased with what they felt was a lack of communication from the club. Manager Dan Wilson, pitching coach Pete Woodworth, president of baseball operations Jerry Dipoto, and GM Justin Hollander all spoke with the two right-handers this week and now everyone seems to be “on the same page,” as Miller put it. Emerson Hancock‘s breakout season has given Seattle six viable starters and a bit of awkwardness in how to best manage everyone’s workload, though in the big picture, there’s no such things as too much good pitching for a team hoping to make an even deeper playoff run.
More from around the AL West…
- Wyatt Langford is slated to start a Triple-A rehab assignment today. The Rangers outfielder hasn’t played since April 21 due to a right forearm strain, and his stay on the 10-day injured list has been longer than expected since Langford’s previous attempt at a minor league rehab stint was paused due to more forearm discomfort. Pegged by many as a candidate for a true breakout in 2026, Langford got off to a slow start before his IL placement, hitting only .238/.274/.363 in his first 84 plate appearances.
- In addition to Langford, Rangers manager Skip Schumaker also gave reporters (including the Dallas Morning News’ Shawn McFarland) updates on two other sidelined players. Corey Seager is set for a live batting practice today, a week after a previous live BP session was postponed due to more soreness in the shortstop’s ailing back. “The running has been maybe the main thing” holding Seager back, Schumaker said, through Seager has been able to play catch and take swings. Josh Smith has also rejoined the Rangers and restarted baseball activities, though as with Seager, there isn’t any timetable for when Smith might be back in the Texas lineup. A right glute strain sent Smith to the 10-day IL on May 4, but what was initially expected to be a minimal IL stint was extended due to wrist soreness, and then the more serious matter of a bout of viral meningitis that led to a hospital stay.
- Former Angels top prospect Christian Moore exclusively played second base in his first two pro seasons but he has split his time between second and third base this season at Triple-A Salt Lake. Moore is now getting a look at the entirely new position of left field, Jeff Fletcher of the Orange County Register writes. Angels assistant GM Joey Prebynski said Moore will be used at all three positions, and “for us, it’s just about continuing to get him reps out there, seeing balls off the bat in left field.” No team in baseball has gotten less from its left fielders in 2026 than the Angels, as Josh Lowe‘s struggles (and subsequent demotion to Triple-A) have been the biggest reason why the position has been a black hole for the team. With the Oswald Peraza/Adam Frazier platoon in place at second base, Moore’s next trip to the majors could very well see him get much more time away from his natural position. Moore made his MLB debut last season and hit only .198/.284/.370 over 184 PA, but he has continued to crush Triple-A pitching in his second year at the top minor league level, with a .282/.439/.481 to show for 171 PA for Salt Lake in 2026.
Mariners Notes: Crawford, Rotation, Castillo
J.P. Crawford has been a key part of the Mariners’ lineup since joining the club in 2019. In over 3,800 plate appearances with Seattle, Crawford has batted .248/.341/.369 with a 107 wRC+ while providing serviceable defense at shortstop, including 9 Defensive Runs Saved as recently as 2024. That said, the recently extended Colt Emerson is Seattle’s shortstop of the future, and Crawford, in his final season of club control, has volunteered to play third base to accommodate Emerson.
Crawford’s willingness to play the hot corner will add to his value in free agency, and it may also help his chances of returning to the Mariners. The Athletic’s Ken Rosenthal reports that Crawford’s agent met with general manager Justin Hollander following Crawford’s asking to try third base, reiterating the latter’s desire to stay in Seattle. Hollander indicated a Crawford reunion is “absolutely” possible. “Obviously we’ll talk about it after the season and see how it goes. But he wants to be here and there’s definitely a place for him,” Hollander said of Crawford.
Those comments are not surprising for a general manager speaking of a long-tenured and well-liked player. That said, Crawford’s willingness to move positions and positive clubhouse reputation make the third base experiment worth exploring before he reaches free agency. Crawford’s work at short has been poor since the start of 2025, adding up to -9 DRS and -19 Outs Above Average. He has 174 2/3 innings of big league experience at third, all coming with the Phillies from 2017-18. To his credit, Crawford was worth 7 DRS and 3 OAA in that sample.
Of course, that’s a small sample from eight years ago. In contrast, a look at Crawford’s Statcast page gives reason for pessimism. His range is in the first percentile, while his arm strength 77.5 MPH arm strength in 2026 falls in just the 17th percentile. In terms of lateral moves, Crawford has been worth -10 OAA since the start of 2025 when moving toward third base. When moving toward first base, that improves slightly to -4 OAA. Playing third base would result in more lateral moves toward first, which could theoretically help to optimize Crawford’s defense as he plays deeper into his 30s.
Time will tell how Crawford fares defensively at the hot corner. In any case, a reunion might help the team’s offense and overall defensive flexibility. Crawford has put up a 114 wRC+ in 180 plate appearances this year. Despite a .204 batting average, he remains a productive hitter thanks to his ability to draw walks, doing so at least 11.3% of the time in every season since 2022. The M’s also have Brendan Donovan under club control through 2027. Donovan has exclusively played third this year but also has experience at second and in left. Retaining Crawford to play third would allow Donovan to be used as a super-utility player while ensuring plenty of at-bats for those two and Emerson.
Turning to the pitching staff, the Mariners’ rotation is in a bit of a crunch with Logan Gilbert, George Kirby, Bryan Woo, Bryce Miller, and Emerson Hancock all performing well. Although Miller had a 5.68 ERA last year and missed the first month and a half of 2026 with an oblique strain, he posted a 3.52 ERA with a strong 17.6% strikeout to walk differential from 2023-24. Going forward, Ryan Divish and Adam Jude of the Seattle Times opine that the Mariners’ best path forward is Miller in the rotation and Luis Castillo in the bullpen full-time.
Castillo made his first career appearance as a reliever on Tuesday, allowing two earned runs in 2 1/3 innings against the White Sox while striking out four. He’s been a reliable starter since joining Seattle midway through the 2022 season, but unfortunately that hasn’t been the case in 2026. Castillo has a 6.34 ERA in 44 innings as a starter, and that’s not the result of one or two blow-ups. He’s allowed four earned runs or more on four separate occasions, and he’s only once completed six innings. Castillo has had some bad luck, as evidenced by a .346 opponents’ average on balls in play, but he’s also getting groundballs at a career-low 35.2% rate.
Castillo’s four-seamer had a run value of +11 last year, according to Statcast. While it hasn’t been as effective in 2026, the pitch is still getting 1.8 inches of horizontal break above league average. As a reliever, Castillo could take advantage of that movement by throwing the four-seamer more often, without having to face hitters multiple times. Then, if one of the starters goes down with an injury, Castillo could slot back into the rotation and revert to his old pitch mix.
Photo courtesy of Jay Biggerstaff, Imagn Images
Mariners To Reinstate Bryce Miller, Adjust Rotation
Right-hander Bryce Miller will make his Mariners season debut on Wednesday against the Astros, reports Ryan Divish of the Seattle Times. Miller opened the year on the injured list after straining an oblique in the spring. Divish adds that Seattle will initially go to a six-man rotation, then potentially move to a piggyback situation with Miller and right-hander Luis Castillo.
Injuries have derailed Miller in back-to-back seasons. An elbow issue slowed him for much of 2025. The righty first went on the IL with elbow inflammation in mid-May, but returned after less than three weeks. He made two starts, then went right back on the injured list. Miller came back in August. He remained healthy to close the year and contributed some important innings in the postseason.
Miller made it through just one Spring Training appearance before going down with the oblique injury. His absence opened the door for Emerson Hancock. The former prospect has had chances in the rotation in recent seasons, but they have never amounted to much success. Hancock had a 4.50 ERA or worse in each of his three years as an occasional member of Seattle’s staff.
The 2026 campaign has been a complete reversal for the 26-year-old Hancock. He’s been one of the more surprising breakouts of the young season. Hancock had a mid-2.00s ERA with more than a strikeout per inning heading into Friday’s outing against the White Sox. He allowed five earned runs over six innings in Chicago, but still emerged with his third win. MLBTR’s Steve Adams dug into Hancock’s stellar season in this article for Front Office subscribers.
A decision on Hancock and the rest of the rotation was coming as Miller neared his return. Instead of bumping Hancock or the struggling Castillo, Seattle is keeping everyone in the mix, at least for now. As Divish points out, the club doesn’t have an off day until May 21. Rolling with a six-man rotation will afford the group some extra rest during an arduous stretch of the calendar.
By performance, Castillo deserves to be booted from the group. The righty tossed six scoreless innings against the Yankees in his season debut. Since then, he’s been crushed for 24 earned runs over six outings. Castillo ranks in the fourth percentile for average exit velocity and in the seventh percentile for hard-hit rate. The 33-year-old might be hitting the wall at this stage of his career. Castillo is still due $22.75MM next season, plus $25MM in 2028 if certain thresholds are met, so Seattle is incentivized to find a way for him to add value. The piggyback setup with Miller might help Castillo get back on track.
Photo courtesy of Rick Scuteri, Imagn Images
Mariners Not Planning To Trade Luis Castillo
The Mariners were willing to listen to offers for Luis Castillo at this time last year, but the right-hander ultimately remained with Seattle. The club doesn’t intend to shop Castillo during this year’s winter meetings, reports Adam Jude of the Seattle Times.
The 32-year-old Castillo delivered steady results last season, pitching to a 3.54 ERA over 32 starts. He topped 175 innings for the third straight year. Castillo’s strikeout rate fell to a career-low 21.7%, but he countered the downturn with a career-best 6.2% walk rate. The veteran has now improved his walk rate in each of the past four seasons.
Castillo has two years and $45.5MM remaining on the five-year, $108MM deal he signed with Seattle back in 2023. The contract also includes a vesting option for 2028, which is triggered if Castillo reaches 180 innings in 2027. He’ll easily be the Mariners’ highest-paid player next season, though it’s a reasonable commitment for Castillo’s reliable innings.
Seattle acquired Castillo from Cincinnati at the 2022 trade deadline for a package of Noelvi Marte, Edwin Arroyo, Levi Stoudt, and Andrew Moore. Marte hasn’t completely lived up to his lofty prospect pedigree, but he provided meaningful contributions at the big-league level last season. Arroyo is among the club’s top infield prospects and could reach the majors as soon as 2026. Still, the deal has worked out well for the Mariners.
Castillo has been remarkably consistent with Seattle, recording an ERA between 3.34 and 3.64 in his three full campaigns with the team. His approach has changed significantly as a Mariner, with an increased focus on his fastball/slider instead of the changeup. Castillo boasted one of the more effective changeups in the league while in Cincinnati, and he used it as his primary pitch from 2019 to 2021. With Seattle, he’s pushed the offering behind his four-seamer, sinker, and slider in terms of usage. The changeup has easily been Castillo’s least-effective pitch by Run Value since he joined the Mariners. His fastball has emerged as a dominant pitch, notching a Run Value of at least 12 in four straight years.
Seattle’s standout starting rotation struggled with injuries last season. George Kirby and Logan Gilbert both missed extended stretches. Bryan Woo, who had largely been healthy for the first time, went down in September, but made it back for the ALCS. With Bryce Miller expected to avoid elbow surgery, the group should be back to full strength next year.
The Mariners have been on the offensive this offseason, re-signing Josh Naylor and swapping Harry Ford for Jose A. Ferrer. Even with Ferrer joining the squad, Seattle isn’t done making tweaks to the bullpen, per president of baseball operations Jerry Dipoto. “We will continue to add to our bullpen, in all different ways, like we always have,” Dipoto told reporters, including Jude. Dipoto mentioned that the team has been in touch with multiple veteran relievers and expects a deal to get done.
Led by Andres Munoz, the Mariners’ bullpen ranked eighth in SIERA last season. Ferrer will give the team a hard thrower from the left side, joining Matt Brash as a setup option ahead of Munoz. With Emerson Hancock preparing as a starter, Seattle could target a swingman on the open market. Another lefty alongside Ferrer and Gabe Speier could also make sense.
Photo courtesy of Stephen Brashear, Imagn Images
Mariners Not Currently Listening To Offers On Luis Castillo
Injuries to Ryan Bliss, Victor Robles, and Jorge Polanco have required the Mariners to drastically rethink their lineup in recent weeks. Bliss’s expected four-to-five month absence after undergoing surgery on his biceps leaves a hole at second base, which Polanco won’t be able to fill for at least another week or two as he’s been limited to DH-only duties by his own injuries. Robles, meanwhile, figures to be sidelined for at least three months by a shoulder fracture, which forced Luke Raley to move from first base to right field. That leaves two spots in the club’s infield that need to be filled, and while Miles Mastrobuoni and Rowdy Tellez are holding down the fort for the time being it’s hardly a surprise that the Mariners have begun exploring the market for infield help as they look to reconstruct their offense.
The idea of the Mariners searching the market for infield help is hardly a new one. Over the offseason, Seattle reportedly engaged in trade conversations regarding players like Cubs second baseman Nico Hoerner, Phillies third baseman Alec Bohm, and Red Sox first baseman Triston Casas. None of those trade talks ultimately gained enough traction for Seattle to bring an infielder into the fold, however, and so they went into the season with a largely unchanged infield aside from a minor addition in Donovan Solano. The hangup in those talks appears to have been the Mariners’ hesitation to part ways with a member of their excellent starting rotation. Seattle’s on-paper starting five of Logan Gilbert, George Kirby, Bryan Woo, Luis Castillo, and Bryce Miller is in the conversation for the very best in the entire sport, but the team’s unwillingness to split up that quintet seemed to hamper trade talks this winter even as they reportedly at least listened to offers on Castillo.
If the club was reluctant to trade from its rotation this winter, they appear even more unlikely to do so now. USA Today’s Bob Nightengale wrote this morning that one unnamed organization offered the Mariners a young infielder in exchange for Castillo in the aftermath of Seattle’s recent injury woes but was rebuffed, with Seattle indicating that Castillo is off-limits for the time being. It’s notable that the club is holding firm on its desire to keep a strong starting rotation together, even if the details about the reported trade offer are rather sparse. It’s understandable that the Mariners wouldn’t want to compromise their starting pitching depth this early in the season, even in the face of their current woes on offense, given that Kirby is currently out of commission with shoulder inflammation.
Kirby is tentatively expected to be back at some point in May, but details on his recovery process have been relatively sparse so his exact timetable for a return is unclear. Nonetheless, it stands to reason that the Mariners wouldn’t be interested in dealing from a rotation that currently features just four starting pitchers until Kirby returns unless completely overwhelmed by an offer. That’s especially true given how well Castillo has pitched so far, with a 2.12 ERA and a 3.99 FIP across his first three starts of the season.
The Yankees and Mets entered the season with a number of notable rotation injuries and could certainly benefit from a proven starter like Castillo, and injuries will surely continue to plague the rotations of contenders in the coming weeks and months. Just today, the Cubs announced that ace southpaw Justin Steele will miss the remainder of the 2025 season due to impending elbow surgery. The Red Sox, Orioles, and Padres are among the other teams that have been bitten by the injury bug in the rotation to this point in the year, though that list could obviously look very different by the time trade season kicks into full gear.
Giants Showed Interest In Luis Castillo Earlier In Offseason
The Giants were among the teams that engaged the Mariners earlier in the offseason in trade talks regrading Luis Castillo, reports Susan Slusser of the San Francisco Chronicle. The clubs obviously did not line up on a deal and Castillo is expected to open the year in Seattle’s rotation.
Seattle entertained offers on the veteran righty as a means to potentially adding lineup help and creating payroll space which they could reinvest in the offense. The Mariners seemingly never gave much consideration to moving any of their younger top four starters: George Kirby, Logan Gilbert, Bryce Miller or Bryan Woo. Castillo is in a different spot, as he’s entering his age-32 season and on a significant contract. He’ll make $22.75MM annually for the next three years, while the deal also includes a vesting option for the ’28 campaign.
It’s not a bad contract. Castillo remains a very good starter. He turned in a 3.64 ERA with an above-average 24.3% strikeout percentage over 175 1/3 innings last year. It was his sixth consecutive sub-4.00 ERA showing. He has topped 150 innings in each of the last six full seasons. Castillo has had better than average strikeout rates throughout his career. His fastball still sits in the 95-96 MPH range. His salaries are expensive but in line with what comparable or slightly lesser pitchers like Nathan Eovaldi, Sean Manaea and Yusei Kikuchi landed on three-year terms as free agents.
At the same time, the Mariners were looking both to offload the money and command upper-level hitting talent in return. They seemingly stuck to a high asking price, which aligns with president of baseball operations Jerry Dipoto’s repeated assertions that the front office was reluctant to subtract from the rotation.
Slusser writes that the Giants have unsurprisingly been unwilling to entertain including top first base prospect Bryce Eldridge in a trade. That’s not to say that the Mariners were necessarily insistent on including Eldridge in a Castillo deal, but the Giants are otherwise light on impact controllable hitting talent. The 20-year-old first baseman is the only San Francisco prospect to crack Baseball America’s Top 100 this offseason.
Tyler Fitzgerald and Heliot Ramos are coming off impressive seasons, but they’re each ticketed for everyday playing time in San Francisco. Both players have elevated strikeout rates that could have been a concern for Seattle. Marco Luciano’s prospect status has fallen thanks to defensive questions and strikeout concerns of his own. Luis Matos and Casey Schmitt probably project as depth pieces. While the Mariners presumably had varying levels of interest in some of those players, it’s understandable that the sides apparently couldn’t line up on value.
The Giants would up making a big move on the free agent front, signing Justin Verlander to a $15MM deal. The future Hall of Famer slots behind Logan Webb and alongside Robbie Ray in Bob Melvin’s staff. Jordan Hicks seems ticketed for the fourth starter role, with Kyle Harrison probably grabbing the final rotation spot. Hayden Birdsong, Landen Roupp, Keaton Winn and Mason Black are among the other options on the 40-man roster.
Jerry Dipoto Discusses Castillo, Lineup, Polanco
Mariners president of baseball operations Jerry Dipoto met with reporters this afternoon after the team finalized the one-year deal to retain Jorge Polanco. Seattle’s longtime front office leader addressed the team’s atypically quiet offseason while providing a couple injury updates.
Dipoto said the front office entered the winter believing they could be in for a slow offseason. “One of our points going into this offseason, and I know I made it sitting in the dugout in the final series, was that we didn’t anticipate a great deal of movement around the team,” he told the beat (including Ryan Divish of the Seattle Times). “As we are now about a week away from heading to Spring Training, I’d say that probably played out to be spot on, much to, I think, the dismay of a few. But we have a good team.”
Seattle has made two major league free agent signings. They brought Polanco back on a $7.75MM guarantee and added Donovan Solano as a part-time righty bat for $3.5MM. Reporting from both The Seattle Times and MLB.com throughout the offseason has suggested that ownership was only allowing the front office to allocate between $15MM-20MM to the MLB payroll. While the lack of free agent activity has certainly been a source of frustration for much of the fanbase, it’s not especially surprising.
The more interesting development has been the M’s willingness to sit out the trade market. They’ve made four trades this offseason, all of which have been depth acquisitions for players who were in DFA limbo: Austin Shenton, Miles Mastrobuoni, Blake Hunt and Will Klein. Those are akin to waiver claims. The Mariners essentially haven’t made a single notable move on the trade market, a stark contrast to Dipoto’s reputation as one of the game’s most prolific traders. The “Trader Jerry” nickname has been well earned in prior offseasons.
Most trade speculation concerned the possibility of the Mariners moving a starting pitcher to add a hitter. As Dipoto noted today, he did indeed downplay that notion before last season even ended. He famously called dealing from the rotation the M’s “Plan Z” for the offseason in the referenced media scrum. That didn’t stop other teams from inquiring on Seattle’s young rotation nucleus of George Kirby, Logan Gilbert, Bryce Miller and Bryan Woo, but there’s nothing to suggest the Mariners gave strong consideration to moving any of them.
The one starter who was available was Luis Castillo. The veteran righty is under contract for another three seasons and $68.25MM (plus a 2028 vesting option). Trading Castillo could have created spending room while netting the M’s immediate lineup help. It wasn’t going to be a straight salary dump, though, and Seattle hasn’t found an offer it finds compelling. The Seattle Times’ Adam Jude reported last week that Castillo was unlikely to move at this point.
Dipoto implied as much in today’s comments. He told Jude and other reporters that the front office received some proposals that warranted real consideration, but those obviously did not result in a deal. “Not shockingly, we had inquiries on all five of our starting pitchers and dozens of prospects along the way,” he added. “But obviously we opted not to go that route.” While he left open the possibility of making another move, he noted that the front office would be happy with the roster “if this is our team going into Spring Training or Opening Day” (via Divish and Jude).
The Mariners will go into Spring Training with arguably MLB’s best 1-5 in the rotation. Their depth behind that is lacking, though perhaps quick-moving prospect Logan Evans can soon be a factor. Seattle benefited from excellent rotation health last year. Woo was the only member of their front five who made fewer than 30 starts. That’ll be difficult to replicate, but when the rotation is at full strength, they’re giving the ball to an above-average starter every night.
As has long been the case, the question is whether they’ll score enough runs. Dipoto expressed confidence in the lineup, pointing to their success later in the season after the managerial and hitting coach changes. Seattle hitters had a .216/.301/.365 batting line through August 21. After dismissing Scott Servais and Jarret DeHart in favor of Dan Wilson and Edgar Martinez, respectively, they hit .255/.347/.417 in their final 34 games.
Attributing that entirely to the coaching changes is overly simplistic. They improved the lineup at the deadline with the Justin Turner and Randy Arozarena pickups and league-wide offense tends to peak later in the summer with warmer weather. Still, the change in voice probably played some part in the much improved finish. The Mariners play in the sport’s toughest home park for hitters. Only the White Sox had a lower team OPS in home games. Seattle ranked 13th in OPS on the road. Mike Petriello of MLB.com examined some reasons behind T-Mobile Park’s extreme pitcher-friendly environment last week in a column that’s well worth a full read.
Dipoto also addressed a few injury situations. He expressed confidence in Polanco’s health after the veteran infielder played through a left knee injury that eventually required a meniscus repair. The Mariners believe the move from his longtime second base position to third base will take less of a toll on him physically. Meanwhile, reliever Troy Taylor suffered a lat strain during his offseason workouts and will not be ready for the start of camp. It’s not clear if he’ll need to begin the regular season on the injured list. The righty turned in a 3.72 ERA while striking out nearly 31% of opposing hitters across 21 appearances as a rookie.
Mariners Less Likely To Trade Luis Castillo; Twins Showed Interest
Luis Castillo‘s name has swirled in trade rumors for much of the offseason, as since Castillo is far and away the priciest member of the Mariners’ rotation, Seattle has at least been more open to discussing Castillo than any of its other starting pitchers. However, Adam Jude of the Seattle Times writes that a Castillo trade “is less likely now than it was early in the winter,” even if the Mariners will continue to explore other possibilities to build on what might be a mostly set roster.
Infield help was the Mariners’ clearest need heading into the winter, leading to natural speculation that the M’s would move Castillo or another starting pitcher for a clear-cut everyday player that could slide right as an everyday option at first, second, or third base. This said, Seattle president of baseball operations Jerry Dipoto has long said that the M’s would trade from their rotation only as a last resort, so it might not be any surprise that the club is now moving away from Castillo after addressing its infield needs in free agency.
Jorge Polanco and Donovan Solano were both recently signed to one-year deals, adding a pair of experienced players to the infield mix for $11.25MM in guaranteed money. These expenditures have absorbed much of the limited budget Dipoto had to work with, as Jude reiterates that the Mariners had roughly $15MM in available payroll space this winter. Between this lack of spending ability and nearly league-wide demand for only MLB-caliber talent (rather than prospects) on the trade market, Dipoto’s hands may have been somewhat tied, and he opted to instead run it back with Seattle’s superb rotation rather than take the risk of diminishing the rotation for a hitting upgrade.
On paper, trading Castillo would’ve helped the Mariners both add a bat and cut some payroll, since the right-hander is owed $68.25MM in guaranteed money through the 2027 season. (A vesting option for the 2028 season could add another $25MM in salary if Castillo remains healthy and tosses at least 180 innings in 2027.) That said, Castillo’s salary was also no small consideration for other teams — in trade talks with the Red Sox, Boston was reportedly only willing to move Triston Casas for Castillo if Masataka Yoshida was also sent along with Casas as salary offset.
Several of the teams cited by MLBTR’s Nick Deeds in late December as potential Castillo trade fits have since acquired other pitchers, further narrowing Seattle’s list of options. Opening Day is still eight weeks’ away, of course, so there’s plenty of time for the Mariners to pivot back to a Castillo deal if circumstances (i.e. injuries, a drop in asking prices) should change either for the M’s or a mystery team.
Perhaps as an example, the Twins hadn’t been considered as a potential landing spot for Castillo, but The Athletic’s Dan Hayes hears from a Twins source that reports that Minnesota did indeed check in with the Mariners about the veteran righty. It doesn’t appear to be any more than a due diligence exploration, however, as Hayes suggests that Castillo’s contract is too pricey for the Twins’ liking.
Minnesota is also working within payroll restrictions, as Hayes writes that the Twins may have around $5MM in additional spending space for 2025. Multiple reports suggest that the Twins would first have to trade some contracts off the books in order to make space for new acquisitions, which is why Christian Vazquez and Chris Paddack have been oft-mentioned trade candidates.
It was just over a year ago that the Twins and Mariners combined on a prominent trade that sent Polanco to Seattle in the first place, so the two teams have a recent working relationship. Still, the two teams are somewhat in the same boat of trying to both fix some clear needs on their rosters while also spending as little as possible, leaving little common ground on the trade front. Minnesota has been more recently linked to Dylan Cease‘s market, and while prying Cease away from the Padres won’t be easy, his $13.75MM salary for just the 2025 season (Cease is a free agent next winter) is a better financial fit for the Twins’ books.
Orioles Remain In The Market For Pitching Upgrades
Late last week, the Orioles added veteran right-hander Charlie Morton to their rotation mix on a one-year deal. On paper, the addition (alongside the club’s one-year deal with Tomoyuki Sugano earlier last month) would appear to fill their rotation. Things may not be that simple, however, as Ken Rosenthal of The Athletic reported this morning that Baltimore remains in the market for upgrades even after adding Morton to their rotation mix.
As noted by Rosenthal, the Orioles already have a fairly deep rotation mix as things stand. Morton and Sugano are joined by Zach Eflin and Grayson Rodriguez as locks for the club’s rotation next year, with Dean Kremer poised to round out the starting five. Rosenthal suggests that veteran journeyman Albert Suárez could pitch in as the club’s sixth starter if the Orioles opt for a six-man rotation this year, but even if they stick with just five starters Suárez figures to slot into the bullpen as a swing-man who can move back into the rotation as needed. Cade Povich, Trevor Rogers, and Chayce McDermott are all available as depth options behind that group, as well.
If Baltimore were to add another starter, it seems likely that Kremer would be the odd man out. The right-hander made 24 starts for the Orioles last year and pitched to decent results, with a 4.10 ERA (92 ERA+) and a 4.32 FIP in 129 2/3 innings of work. That’s perfectly solid production for a fifth starter, but those numbers also shouldn’t prevent the Orioles from upgrading their rotation mix and squeezing Kremer out of the picture. After all, the right-hander has been at least slightly below average by measure of ERA+ in every season of his career except 2022, when he pitched to an impressive 3.23 ERA in 125 1/3 innings of work in a career year.
Kremer, who is arbitration eligible for the first time in his career this winter, has a minor league option remaining that could offer the Orioles some flexibility if the club decides to add further to its rotation. Speculatively speaking, however, it’s also possible that the club could consider offering the right-hander as part of the return to land a starter on the trade market. Kremer has three seasons of team control remaining, so offering him up in order to land a rental pitcher like Dylan Cease would be a risky move given the fact that Morton, Sugano, and Eflin are all already ticketed for free agency next winter. That said, it seems feasible that Kremer could make sense as part of the return for a controllable arm such as Luis Castillo or Pablo López.
Rosenthal previously reported that the Mariners have some pause about dealing Castillo given their lackluster rotation depth behind the current starting five, which could make the Orioles a particularly good trade partner if they’re willing to make Kremer or even one of their younger arms like Povich available. Rosenthal reports that the Mariners are requiring major league talent in return for Castillo’s services this winter, while noting that Baltimore seems reluctant to deal from its cache of young position players. Perhaps a package focused on Kremer and first baseman Ryan Mountcastle could make some sense for both sides, then, offering Seattle a pair of arbitration-level players with multiple years of control while landing the Orioles the controllable, front-line starter they’ve been seeking.
Of course, the trade market isn’t the only way that Baltimore could upgrade their rotation. Former Oriole Jack Flaherty is still available on the free agent market, and the club was frequently connected to him prior to the club’s deal with Morton. If the Orioles remain in the market for rotation upgrades even after adding Morton to the fold, it stands to reason that Flaherty remains at least a potential fit for the club’s needs despite some recent reporting that has suggested the club could balk at the righty’s asking price. Flaherty seems certain to land a multi-year deal this winter, with reports indicating he’s angling for a five-year pact. Such an addition would offer Baltimore a bit more certainty in its rotation for 2026 and beyond by allowing them to project a starting five that includes Flaherty, Rodriguez, and Kremer for next season alongside Kyle Bradish, who could return from elbow surgery at some point in the second half this year.
Moving beyond the possibility of further rotation upgrades, Rosenthal adds that the Orioles hope to supplement its bullpen mix this winter. The biggest addition to Baltimore’s relief corps is sure to be the return for closer Félix Bautista from Tommy John surgery, but it stands to reason that the club could use at least one veteran arm to join Seranthony Domínguez, Yennier Cano, Keegan Akin, and Gregory Soto among the club’s potential late-inning options ahead of Bautista. While Baltimore has not been directly connected to any specific relievers in this year’s free agent market, they figure to benefit from the fact that there’s been minimal movement on the relief market to this point in the winter if the club decides to hold off on adding bullpen help until later in the winter.