Upton (back) is not in the starting lineup Friday against the Rays, Jack Harris of the Los Angeles Times reports.

EDGE Analysis

Upton left Tuesday's game against San Francisco after tweaking his back while swinging early in the contest. He did not play in Wednesday's series finale and remains out of the starting lineup following Thursday's off day. The outfielder's considered day-to-day and the Angels could provide an update on his status later Friday.