The Angels placed right-hander Nick Tropeano on the 10-day disabled list with right shoulder inflammation on Wednesday, and recalled utility player Ryan Schimpf from Triple-A Salt Lake.
Tropeano, 27, has a 3.42 ERA over four starts for Los Angeles this season, tossing 6 1/3 scoreless innings in the Angels' 3-2 victory over the Orioles on Tuesday.
Schimpf, 30, appeared in four games for the Angels earlier this season (1-for-5 with a home run) after being traded to Los Angeles from the Braves on March 31.