The Spanish goalkeeper's display may have confounded his critics in the media but it did not surprise his skipper, Vidic, who believes his young team-mate is rising to a difficult challenge.
"I think it's hard for David because Edwin van der Sar was here for many years and set a high standard," Vidic told MUTV. "Edwin was an experienced goalkeeper and it's hard to replace him.
"David is a young goalkeeper, he's 21. He's maybe made one or two mistakes but that's normal, everyone does that. I think people should have more understanding for that.
"David's had some great games and I'm sure the more games he plays, the better he will become, no doubt."