The Mets activated Garrett (elbow) from the 15-day injured list Saturday, Mike Puma of the New York Post reports.
Garrett has been out of major-league action since July 10 due to inflammation in his right elbow. In his last rehab outing with Triple-A Syracuse on Thursday, he allowed one hit and one walk while striking out three in one inning. Before landing on the IL, Garrett recorded eight holds and four saves across 36 major-league outings with a 3.64 ERA and 1.43 WHIP across 42 innings. To make room on the 26-man roster for Garrett, the Mets optioned Alex Young to Syracuse.