San Diego Padres land All-Star pitcher Casey Mize, Workman from Tigers for two top prospects

Casey Mize posted a 2.70 ERA with a 0.99 WHIP and 85 strikeouts in 86 2/3 innings this season, earned his first All-Star nod in 2025, appeared in two postseason games, and is set to make $6.15 million in 2026 before free agency.
Gage Workman has produced solid numbers at Toledo (82 games, 11 homers, .305/.366/.502) and has also appeared for Detroit this season, going 1-for-38 with a .553 OPS in limited MLB action.
Kash Mayfield, San Diego’s No. 2 prospect and a 2024 first-round pick, is a 21-year-old lefty who has reached up to 96 mph, supported by a plus changeup and a slider; MLB projections peg him as a major league regular by 2028 and he even represented the Padres in the Futures Game.
Jackson Wolf, a 27-year-old left-hander, is viewed as back-of-the-rotation depth for San Diego; he has a mix of fastball variants (up to 93 mph) plus a curve, sweeper and changeup, and posted a 7.05 ERA across 24 Triple-A outings this season.
Detroit executed the deal to maximize return ahead of free agency, trading Mize and Workman for Mayfield and Wolf before the 6 p.m. trade deadline to hedge against potential losses for draft-pick compensation.
The San Diego Padres landed one of the best starting pitchers on the trade market, acquiring right-hander Casey Mize and infielder Gage Workman from the Detroit Tigers just before the 6 p.m. deadline, according to Clutch Points. In return, Detroit gets two left-handed pitchers: top prospect Kash Mayfield and depth arm Jackson Wolf.
Mize has put together the best season of his career in 2025. He owns a 2.70 ERA, a 0.99 WHIP, and 85 strikeouts in 86 2/3 innings — numbers that earned him his first All-Star nod, per The Sporting Tribune. He is under control through 2026 at $6.15 million before hitting free agency.
San Diego already added Robbie Ray earlier this deadline period. Now Mize slots in alongside Logan Gilbert, Walker Buehler, and others as the Padres chase a deep October run. The move gives them a No. 2 starter with proven stuff and a track record of staying in the zone. Sports Yahoo called it one of the boldest pitching upgrades of the trade deadline.
Mize appeared in two postseason games and has shown he can handle big moments. His 0.99 WHIP means fewer base runners and less stress on the bullpen. For a team chasing a title, that kind of reliability is hard to find this late in the summer.
Detroit's decision to move Mize is a clear signal. The Tigers are out of the playoff race and chose to sell rather than hold. By trading him now, they get draft-pick compensation value back before free agency wipes that chance away, according to Head Top Topics.
Workman heads to San Diego with some interesting Triple-A numbers — 11 home runs, a .305 average, and a .502 slugging percentage across 82 games in Toledo. His MLB track record is thin, just 1-for-38 with a .553 OPS in limited big-league time. But the Padres get a versatile infield option with upside.
Kash Mayfield was San Diego's No. 2 prospect and a 2024 first-round pick. He is 21 years old and already pumps his fastball up to 96 mph. His changeup grades out as a plus pitch, and he backs it up with a hard slider. He even represented the Padres in the Futures Game this season, according to Detroit Free Press.
MLB projections put Mayfield in the majors by 2028. That gives Detroit a young ace-caliber arm to build around for the next competitive window. Jackson Wolf, 27, adds rotation depth right away. He posts a fastball up to 93 mph with a curve, sweeper, and changeup, though his 7.05 ERA in 24 Triple-A outings this year is a concern.
Clutch Points gave the Padres high marks for landing a true front-line arm without giving up a major league contributor. Mize is proven, affordable, and ready to pitch in October. For a team with a win-now mandate, the cost — two pitchers who have not yet reached the majors full-time — seems very manageable.
Detroit's grade depends almost entirely on Mayfield. If he develops into a mid-rotation starter or better, this deal looks smart. Wolf is low-risk, low-cost depth. The Tigers traded peak Mize for projected future Mayfield, a classic short-term versus long-term swap at the deadline, per Sports Yahoo.
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