The Padres have acquired right-handed starting pitcher Casey Mize from the Detroit Tigers, the New York Post reports.
Mize had been slated to start for the Tigers on Friday, but in a move that presaged a trade, the club scratched him from that scheduled outing and went with a bullpen game instead.
Mize, 29, is a pending free agent who's enjoying his finest big-league season to date, at least on a rate basis. Over his 16 starts in 2026, he's put up a career-best ERA+ of 159, and he's also notched career-best marks in FIP, K/BB ratio, and strikeout rate. This season, Mize has featured increased use of his slider. For his career, the former No. 1 overall pick out of Auburn has a 107 ERA+. Mize earned his lone All-Star selection in 2025. He's owed the balance of a $6.15 million salary for the current season before hitting the market this coming winter.
With San Diego, Mize will slot in a contending rotation that already includes Michael King, the newly acquired Robbie Ray and Walker Buehler. Mize does have postseason experience, as he made one brief playoff start in both 2025 and 2024 as a member of the Tigers. Over those combined six innings, he allowed two runs on three hits with seven strikeouts and four walks.
