"We'll see how he is tomorrow. You always want to keep your edge. We'll weigh these factors very carefully."
The Angels open the regular season on Monday in Anaheim against the Mariners.
Josh Hamilton moved from left field to center, with J.B. Shuck taking over in left. Second baseman Howie Kendrick took Trout's No. 2 spot in the batting order.
Earl Bloom is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.