Former Little-Used Seattle Mariners Pitcher Signs with Miami Marlins

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Former Seattle Mariners reliever Brett de Geus signed a new contract with the Miami Marlins on Thursday.
The Marlins Communications Department announced the move on social media:
The Miami Marlins today claimed RHP Brett de Geus off waivers from the Pittsburgh Pirates. To make room on the 40-man roster, RHP Seth Martinez has been designated for assignment.
De Geus (deh GUS), 27, has gone 3-4 with a 7.48 ERA (51 ER/61.1 IP), 29 walks, and 48 strikeouts in 60 career MLB games with Texas (2021), Arizona (2021), Seattle (2024), Miami (2024), and Toronto (2024). He made seven relief appearances with the Marlins last season. His 96.4 average fastball velocity in 2024 ranked in the 86th percentile, per Baseball Savant. The Pleasanton, Calif. native was originally selected by Los Angeles (NL) in the 33rd round of the 2017 First-Year Player Draft.
The Miami Marlins today claimed RHP Brett de Geus off waivers from the Pittsburgh Pirates. To make room on the 40-man roster, RHP Seth Martinez has been designated for assignment.
— Marlins Communications (@MarlinsComms) February 27, 2025
De Geus (deh GUS), 27, has gone 3-4 with a 7.48 ERA (51 ER/61.1 IP), 29 walks, and 48 strikeouts in… https://t.co/lnRHOGv0m8
The 27-year-old de Geus appeared in 13 major league games in 2024, going 0-2 with a 7.15 ERA. He pitched just 11.1 innings and has 66.1 major league innings under his belt.
de Geus bounced around in 2024, pitching seven games with the Miami Marlins, four with the Seattle Mariners and two with Toronto. He was designated for assignment by Toronto earlier this offseason and then picked up by Pittsburgh before landing in Miami.
The Marlins are coming off a season in which they went 62-100 and finished last in the National League East. After trading away left-hander Jesus Luzardo and losing Braxton Garrett to Tommy John surgery, they figure to struggle again in 2025.
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