Red Sox Video
Alex Speier of The Boston Globe mentioned in a recent write-up that the Seattle Mariners are listening when opposing GMs come calling for Luis Castillo.
Castillo turns 32 in a few days. A reliable frontline starter for several years, the righty's ERA took a step backward in 2024 but most of his peripherals suggest the situation is far from dire. He lost roughly half a mile per hour on his pitches but metrics such as Stuff+ and Statcast are conflicted on whether the quality of his pitches changed significantly enough to warrant his ERA dropping to roughly league-average.
Castillo is signed for a little over $24 million per season through 2027 and has a vesting option for 2028 at $25 million.
The Mariners have one of the best rotations in baseball but spend every season trying to scrape together enough runs to reach meaningful October baseball. There is a good chance they end up dealing some of that pitching for long-term lineup help.






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