The Giants reinstated Winn (elbow) from the injured list Friday.
Winn will return to the Giants' bullpen after spending nearly a month on the shelf due to a right elbow strain. During his rehab assignment, the 28-year-old fired three scoreless innings while striking out three batters and walking two across three appearances. Now healthy, he figures to reclaim a high-leverage role and could be in the mix for saves if Caleb Kilian continues to struggle.