The Red Sox have claimed right-hander Brandon Brennan off waivers from the Mariners. Brennan has been assigned to Triple-A Worcester. Righty Ryan Brasier was moved on the 60-day injured list to open up space for Brennan on Boston’s 40-man roster.
Seattle designated Brennan for assignment last week. The 29-year-old righty came to the Mariners from the Rockies in the 2018 Rule 5 Draft, and posted a 4.56 ERA and an above-average 24% strikeout rate over 47 1/3 innings for the M’s in his 2019 rookie season. Shoulder problems sidelined Brennan for over two and a half months of the 2019 season, and an oblique strain limited him to 7 1/3 innings in 2020.
Brennan hadn’t yet seen any MLB action this season, as he had been working at the Mariners’ alternate training site. His addition will add a bit more relief depth to a Red Sox pen that has been without Brasier, who began the year on the IL due to a calf strain, and he was also recovering from a fractured pinky finger during the season. It didn’t seem like Brasier was going to be back before June anyway, so his move to the 60-day IL is essentially just a procedural move on Boston’s part.