"The thing that angered me most was that our keeper Paul Robinson hardly had a save to make," conceded Martin Jol at full-time.
Leicester boss Craig Levin agreed: "We actually had fewer chances than in previous matches."
But Jol admitted all three goals conceded after taking a 2-0 lead were caused by errors in the Tottenham back line.
He said: "We paid the price for a few bad defensive mistakes."
Goal One (44 min) MJ: "We didn't defend a cross at the far post and that was a bit sloppy because it was in the air for about nine seconds."
Goal Two (57 min) MJ: "We then gave away the second goal with a corner kick too easily on the right."
Goal Three (90 min) MJ: "A lack of concentration in the dying minute of the game and Leicester got a bit lucky - we should not have played for offside."