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."
Tottenham captain Dawson, usually such a reliable member of Redknapp's side, had a nightmare in the 13 minutes he was on the pitch.
His poor pass allowed Fulham in in the run up to Fulham's first penalty and he then pulled back Dembele's shirt to gift Fulham their second penalty and earn a red card in the process.
"Michael started sloppily today," Redknapp said.
"He gave two goals away which is not like him. He is usually fantastic for us but he got off to a terrible start today.
"I haven't seen a replay of any of the decisions but I thought the second one was harsh. Michael thinks so too."
Source: PA
Source: PA