Lambert convinced Norwich did not deserve Man Utd defeat
Norwich were worthy of at least a point, with Anthony Pilkington hitting the post part of a succession of decent opportunities.
Asked if he felt his side deserved more from their trip to the north-west, Lambert replied: "Yes, but that is the game. If you do not take your chances, they can come back to haunt you.
"If you switch off for a millisecond they will punish you."