Vidic praised Van Persie's character after the Holland hitman recovered from missing a penalty to score the two late goals in the sensational win at St Mary's.
"Robin was great," he told MUTV. "I think he's a great player. Even in his first game, he did a good job and this one is amazing with three goals to give us three points, which I think are going to count very much at the end of the season.
"He's a good penalty taker but it could happen to anyone. It was not a great penalty, I have to say, but, in the end, he managed to score two more so we got the win."