BOSTON (CBS) – The Boston Red Sox activated right-handed reliever Andrew Bailey from the disabled list on Monday.

Bailey, who has been out of action since April 29 with a right biceps strain, struck out two batters and allowed one run in an inning of work during a rehab appearance with Triple-A Pawtucket on Saturday night.

He was 1-0 with five saves and a 1.46 ERA before the injury, and took over Boston’s closer’s role for the injured/ineffective Joel Hanrahan. Bailey has struck out 20 batters in just 12.1 innings pitched, ranking him fourth among qualifying American League relievers with 14.6 strikeouts per nine innings.

It’s unclear if Bailey will be reinserted as the team’s closer, or if Junichi Tazawa will continue to pitch the ninth inning for Boston.

To make room for Bailey on the 25-man roster, right-hander Jose De La Torre was optioned to Triple-A Pawtucket after Sunday’s win over the Minnesota Twins.

Read: Red Sox-White Sox Preview

The Red Sox open a three-game series against the Chicago White Sox in Chicago on Monday — their final series of a nine-game road trip.