The Boston Red Sox bullpen last season was one of the best in baseball. Aroldis Chapman rediscovered his All-Star form, Garrett Whitlock was able to stay healthy and dominated, and the unit as a whole had the second-best ERA in MLB.
While it was a pleasant surprise for Red Sox fans to feel comfortable when the game turned to the pen — they hadn't had a bullpen ERA in the top half of MLB since 2021 — that doesn't mean they should be sitting on their laurels and expecting the same performances in 2026.