RHP Matt Brash placed on 15-day Injured List
SEATTLE – Seattle Mariners Executive Vice President & General Manager of Baseball Operations Justin Hollander announced today the following roster moves:
- Josh Simpson (#37), LHP, recalled from Triple-A Tacoma.
- Matt Brash, RHP, placed on 15-day Injured List (right lat inflammation, retroactive to April 30).
Simpson, 28, has made 9 appearances for the Rainiers this season, posting a 0.96 ERA (1 ER, 9.1 IP) with 12 strikeouts and 6 walks. The left-hander was acquired by Seattle from the Miami Marlins in exchange for cash considerations on Feb. 16 and spent time with the Mariners in Spring Training this year.
He made 31 appearances in the Majors for Miami in 2025, going 4-2 with a 7.34 ERA (25 ER, 30.2 IP) with 36 strikeouts and 22 walks. He made his big league debut on June 21 and recorded his first win five days later, on June 26.
Simpson was originally selected by the Marlins in the 32nd round of the 2019 MLB First-Year Player Draft out of Columbia University (NY). He is one of 23 MLB players all-time from Columbia University, a list that includes Hall of Famers Lou Gehrig, Sandy Koufax, and Eddie Collins.
Brash, 27, was removed from Wednesday’s game during his relief appearance at Minnesota. In his 14 appearances this season, Brash is 2-0 with a 0.00 ERA (0 ER, 11.1 IP) with 8 strikeouts and 2 walks, allowing just one unearned run. The Mariners are 12-2 when Brash appears in a game.
The right-hander has appeared in 4 Major League seasons with Seattle (2022-c), going 16-11 with 8 saves and a 3.10 ERA (62 ER, 180.0 IP) with 235 strikeouts and 82 walks in 184 games (5 starts). He missed the 2024 season after undergoing Tommy John surgery.
Brash was acquired by Seattle as the “player to be named later” from the San Diego Padres in a deal that sent right-hander Taylor Williams to the Padres on Aug. 31, 2020. Brash has been one of the most effective relief pitchers in the game since joining the Mariners, leading the Majors in appearances (78) in 2023 and going 1-0 with a 1.46 ERA (2 ER, 12.1 IP) in 11 Postseason appearances between 2022 and ’25.
