Brasier agreed to a one-year, $1.25 million contract with the Red Sox on Wednesday, Robert Murray of FanSided.com reports.
The Red Sox lack a proven closer on the roster, with Matt Barnes positioned as the likely ninth-inning option if they do not add anyone more seasoned, so Brasier could earn late-inning work in 2021. The 33-year-old righty had a 3.96 ERA, 1.40 WHIP and 30 strikeouts in 25 innings last season.