Mancini is out of the lineup for Sunday's game against the Rays, Rhett Bollinger of MLB.com reports.
Mancini had started in three of the Angels' four games following his promotion from Triple-A Salt Lake on Monday, but his run as a near-everyday player proved to be short-lived. With Nolan Schanuel having since moved past a lingering ankle injury, Mancini will be relegated to the bench for a second straight game.