Cubs activated LHP Caleb Thielbar from the 15-day injured list.

Thielbar returns to Chicago’s late-inning relief mix after missing just over three weeks recovering from a left hamstring strain. The 39-year-old southpaw has recorded a pair of saves to accompany a pristine 3.12 ERA and 11/5 K/BB ratio across 8 2/3 innings of work this season. He’ll help bridge the gap to hard-throwing young closer Daniel Palencia for the Cubs.