The Cottagers were by far the better side at Craven Cottage as they raced into an unassailable 4-0 lead by half-time.
Danny Murphy opened the scoring from the spot after 11 minutes before Michael Dawson was sent off minutes later for pulling back Moussa Dembele in the box. The Fulham captain made no mistake with his second penalty before Brede Hangeland and Dembele made it 4-0 by the break.
"Everything that could have gone wrong did go wrong," Redknapp said.
"We gave two horrendous goals away and had Michael Dawson sent off and gave two penalties away. How do you come back from that?
"You can't keep coming back from those situations."
Source: PA
Source: PA