The Angels announced Upton's move Tuesday prior to a game against the Arizona Diamondbacks, retroactive to Sunday. The Angels called up outfielder Jabari Blash from Triple-A Salt Lake to take Upton's place on the active roster.
"You keep going," Angels manager Mike Scioscia said Tuesday. "You're certainly not going to sit back and feel sorry for yourself, or no one's going to feel sorry for you."
Scioscia says Upton was injured Sunday night after getting the day off when the Angels played at Texas. He'd hoped the cut had healed enough to allow Upton to face his former team, the Diamondbacks, this week.
Trout, on the DL with a wrist injury, has been away from the team following the death of his brother-in-law, former Angels pitching prospect Aaron Cox.