In the corresponding move, reliever Jason Bulger was optioned to Salt Lake. He pitched an inning of relief on Sunday against the Mariners, striking out one batter while not allowing a hit.
"Right now, we have the day off so we're going down to 11 pitchers, which will give us more depth on the bench," said Angels manager Mike Scioscia. "We have some guys banged up. [Torri Hunter is] not 100 percent. It will be good to get a little depth on the bench and we'll move forward from there."
After the off-day on Monday, the Angels will open up a three-game set with the Red Sox at Fenway Park.
The switch-hitting Morales brings a versatile bat to the Angels, hitting .294 in 43 games with the Halos in 2007 with a slugging percentage of .479. He had four home runs and 15 RBIs last season. With the Bees this season, Morales was hitting .279 in 15 games through Saturday, including three doubles and a home run with 15 RBIs. For the Angels, he'll play first base and also a little outfield, if needed.
Amanda Branam is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.