The Red Sox agreed to a minor league contract with reliever Seth Martinez, as first reported by Andrew Parker of Sox Prospects. He’ll get a non-roster invitation to MLB camp.
Martinez has pitched in the majors in five straight seasons. He got a decent amount of run in the Astros’ middle relief corps from 2022-24. He didn’t get as much big league work last year, only making it into six games for the Marlins. Martinez gave up four runs with three walks and four strikeouts across 6 2/3 innings.
The 31-year-old righty spent the majority of the year with Miami’s Triple-A club. He pitched to a 3.71 ERA behind a 29% strikeout rate over 43 2/3 frames. Martinez routinely posts strong whiff numbers in the minors and has fanned more than 30% of opponents with a sub-3.00 ERA in five Triple-A seasons. His flat 4.00 earned run average and 20.5% strikeout percentage in 117 MLB appearances are more solid than great.
Martinez only sits around 90 MPH with his fastball. He frequently relies on his breaking ball while mixing in a changeup. He’s out of options, meaning the Sox would need to keep him on the big league roster or expose him to waivers if they call him up at any point.

O’Hearn, now 32, has been enjoying a late-career breakout over the past three seasons. He played parts of five seasons with the Royals from 2018 to 2022 with just a .219/.293/.390 line to show for it.