Moyes has already seen United fall 11 points off the pace in the Premier League and they have now lost successive home games for the second time this term.
Moyes says his players must keep looking forward, as United visit Sunderland on Tuesday for the first leg of their League Cup semi-final and with the Champions League their only other viable source of winning trophy this season.
United has lost four of its last six games at Old Trafford in all competitions and failed to reach the fourth round for only the second time in 30 years.
United's injury list increased further after Rio Ferdinand had to go off with a knee problem.
Moyes said that his side was a bit unlucky to lose, and added that his players should have put in effort to win in the end, Sport 24 reports. (ANI )