David Jones gave Mick McCarthy’s strugglers a first-half lead, but Spurs, looking to return to the top four, had no response and failed to register a single shot on goal in the second half.
“It’s our worst performance of the season,” said Redknapp. “We had loads of the ball but never threatened enough to score. We’ve had a lot of games and I decided to change one or two around tonight. They worked hard and got after us and we never got to grips with that tonight so fair play to them.”
Niko Kranjcar missed Tottenham’s best chance when his 12-yard effort was saved by Marcus Hahnemann.