Britton announced his retirement from professional baseball Monday, Brittany Ghiroli of The Athletic reports.

Britton's simulated game Thursday in California will be attended by the Mets, John Harper of SNY.tv reports.

Britton (shoulder) threw a bullpen session as part of a showcase event Wednesday, Jon Heyman of the New York Post reports.

Britton was placed on the 60-day injured list with left shoulder fatigue Saturday.

Britton left Friday's game against the Orioles with left arm fatigue, Marly Rivera of ESPN.com reports.

Britton picked up a hold against Boston on Saturday despite allowing one run on one hit and three walks over one-third of an inning. He recorded a strikeout for his only out.

Britton (elbow) was reinstated from the 60-day injured list Thursday, Brendan Kuty of The Newark Star-Ledger reports.

Britton (elbow) rejoined the Yankees on Wednesday and could be activated from the 60-day injured list within the next few days, Joel Sherman of the New York Post reports.

Britton (elbow) is scheduled to move his rehab assignment Wednesday from Single-A Tampa to Triple-A Scranton/Wilkes-Barre, Justin Shackil of WFAN Sports Radio 66 New York reports.