"It was a disappointing day," Redknapp said after the match.
"We started in second gear and suddenly looked like we were getting into the game until we gifted them a goal.
"Fulham started sharper than we did and deserved the win. Their front two of Bobby Zamora and Andrew Johnson were excellent. They gave us problems.
"I brought Aaron Lennon on to try and give us some width, but things didn't happen for us."