Crouse signed a minor-league contract with the Angels on Thursday, Jared Tims of the Talkin' Halos podcast reports.
Crouse (biceps) struck out a batter over a perfect inning Sunday in the Phillies' 9-5 loss to the Red Sox in Grapefruit League play.
Crouse (biceps) was outrighted to Triple-A Lehigh Valley on Wednesday.
Crouse (biceps) will begin a rehab assignment at Triple-A Lehigh Valley on Saturday.
Crouse was recalled from Triple-A Lehigh Valley and placed on the 60-day injured list due to right biceps tendinitis Friday.
Crouse has resided on Triple-A Lehigh Valley's COVID-19-related injured list since May 12, Tom Housenick of The Allentown Morning Call reports.
Crouse was optioned to minor-league camp on Tuesday.
Crouse (0-2) allowed three runs on two hits and three walks over four innings while taking the loss Saturday against Miami. He had one strikeout.
Crouse had his contract selected by the Phillies and will start Sunday's game against the Pirates.