Dion Dublin, on BBCâ€™s Match of the Day 2, branded it "the worst performance in the history of the club, ever".
"Iâ€™ve been absolutely tonked before, as player and manager," said Lambert. "You just try and win the next game.
"Itâ€™s about how they react. Thatâ€™s the mark of good players and a good team. I donâ€™t think it will affect them long-term. Itâ€™s up to myself and my back-room staff to ensure it doesnâ€™t.
"I wonâ€™t have a problem doing that, because theyâ€™re really hurt. None of them will be feeling great. I know how to handle it."