Villa boss O'Neill: That's why I signed Petrov
"I'm pleased for him because he can play like that and he was excellent."
He added: "I think he was up for the game, which was obvious from his performance, and by half-time his confidence was really high.
"I thought last week at Old Trafford there were signs when he didn't do too badly in the game. I was pleased for him because the last time he played at Villa Park, I took him off in the game at half-time against Newcastle.
"He is capable of producing and that is why I signed him."