The Arsenal midfielder said: "We are a team and win or lose as a team. He has made mistakes. But it is not just about one player. Jens is a professional and an experienced goalkeeper. He has saved us many times and we all support him.
"He didn't say anything to us [ afterwards]. He will have to go away and think about it. I know when I make a mistake I don't want people shouting in my face telling me where I went wrong.
"I prefer to work it out myself and I'm sure that's what he will do."
After the latest mishap, the dilemma for Arsene Wenger is whether to persist with Lehmann's experience and back him to recover his impressive form of the past two seasons or take him away from the line of fire and allow him a break from the top flight.
The German's deputy Manuel Almunia is regarded by the Arsenal manager as a far better keeper than the fallible custodian who made some high-profile errors of his own three seasons ago and now could be the right time for a recall.
Wenger said: "Jens is really unhappy and down in the dressing room. I don't need to tell him, though, he has made a mistake. We do not want to blame him. We want to keep the positives."