BREAKING: The Detroit Tigers have traded right-handed starting pitcher Casey Mize to the San Diego Padres, according to the New York Post’s Jon Heyman.
Heyman wrote on X: “Casey Mize to Padres”
The San Diego Union-Tribune’s Kevin Acee wrote: “Padres get Casey Mize and Gage Workman from Tigers for Kash Mayfield and Jackson Wolf.”
TRADE: Detroit Tigers Send RHP Casey Mize, Gage Workman to San Diego Padres
GettyDETROIT, MICHIGAN – JULY 25: Casey Mize #12 of the Detroit Tigers throws a first inning pitch against the Kansas City Royals at Comerica Park on July 25, 2026 in Detroit, Michigan. (Photo by Gregory Shamus/Getty Images)
The Padres also acquired left-handed starting pitcher Robbie Ray from the San Francisco Giants on Monday. San Diego sent a clear win-now message at the deadline despite being out of a playoff spot.
Mize has missed a large chunk of the season due to injuries. But when he’s been healthy (which he currently is), he has been outstanding. In 86 2/3 innings across 16 starts this year, Mize has posted a 2.70 ERA with a 0.99 WHIP and 85 strikeouts. He is set to be a free agent at the end of the season.
GettyDETROIT, MICHIGAN – MAY 21: Casey Mize #12 of the Detroit Tigers throws a second inning pitch against the Cleveland Guardians at Comerica Park on May 21, 2026 in Detroit, Michigan. (Photo by Gregory Shamus/Getty Images)
Mize has spent his entire career with the Tigers. He made his MLB debut in 2020 and missed most of 2022 and all of 2023 due to a UCL injury that required Tommy John surgery.
In his six years in the majors, Mize has recorded a 3.95 ERA with a 1.24 WHIP and 450 strikeouts in 526 2/3 innings across 16 starts.
Looking at Gage Workman
GettyDETROIT, MI – MAY 20: Third baseman Gage Workman #99 of the Detroit Tigers throws out David Fry of the Cleveland Guardians at first base during the second inning at Comerica Park on May 20, 2026 in Detroit, Michigan. (Photo by Duane Burleson/Getty Images)
Worman, a 26-year-old third baseman, made his MLB debut last season. He played for both Chicago teams last year before playing for the Tigers in 2026.
Workman has appeared in just 16 games for the Tigers this year. He has collected six hits in 38 plate appearances.
Looking at Tigers’ Return in Casey Mize Trade
GettyPHILADELPHIA, PENNSYLVANIA – JULY 12: Kash Mayfield #20 of the San Diego Padres on the National League Team pitches during the 2026 MLB Futures Game at Citizens Bank Park on July 12, 2026 in Philadelphia, Pennsylvania. (Photo by Chris Graythen/Getty Images)
Mayfield, a left-handed pitcher, ranked as the Padres’ No. 2 overall prospect per MLB Pipeline. The Padres selected him in the first round (No. 25 overall) of the 2024 MLB Draft. He signed for a bonus of $3,442,100.
At the High-A level this season, Mayfield has posted a 3.54 ERA with a 1.16 WHIP and 62 strikeouts in 53 1/3 innings across 15 starts. He throws a fastball that sits in the low-90s but can reach as high as 97 mph. His best pitch is his low-80s changeup. He also mixes in a slider.
Wolf, a 27-year-old left-hander, made one MLB appearance in 2023 but hasn’t returned to the big leagues since. He has a career 5.24 in 589 2/3 minor-league innings.
TRADE: Detroit Tigers Send Casey Mize to San Diego Padres