Moncada is not in the lineup for Monday's contest in Boston, Jeff Fletcher of The Orange County Register reports.
Moncada returned to the lineup Saturday after missing one game with a sore knee, but he has now been absent from the lineup for two straight contests. It's not clear whether he's had a setback or if the Angels are just being proactive with his rest. Luis Rengifo is at third base and Scott Kingery is at second base for the second day in a row.