Gabriel Agbonlahor struck a late winner as Aston Villa beat derby rivals Birmingham at St Andrews. A typical derby game had lacked quality and chances until the late goal provided an exciting finish.

Villa had always looked the more assured but Birmingham battled to restrict their chances and may wonder could they have fared better with the more adventurous approach they showed in the closing minutes.

For Villa it was their third league win on the trot and saw them continue their fine away form of last season.

Villa boss Martin O'Neill believes John Carew's introduction as a second half substitute was the turning point.

"It was a game of very few chances and it looked to be heading to a stalemate but there is always a possibility, we have players who are capable of scoring goals," O'Neill told Sky Sports News.

"It was a terrific goal for us and we tried to go for the win with John coming on and I'm just delighted to have won the game.

"We had a couple of chances after that but I accept the fact at that stage Birmingham were chasing the game.

"It was not just his (Carew) presence but his contribution. Obviously we're delighted to win the game.

"It was a hard-fought match. We spoke beforehand of being one of relief more than anything else but obviously for our supporters I'm delighted."

Birmingham City boss Alex McLeish admitted his side need to find a way of dealing with set-pieces.

"It is harsh result," said McLeish. "There is no doubt about that. We played really well and got about Villa.

"I don't think we allowed them to play at all today. We nullified the threat of Agbonlahor and Young.

"The difference between us and Villa, in financial clout and quality, is a big gulf but it didn't look like it today.

"Their goal was a free header and we have just got to deal with those balls.

"Roger Johnson was fantastic today but Carew slipped his grasp. But then we have to defend the second ball and that's often the one that kills you.

"Players switch off and turn and watch the ball. Agbonlahor turned and slipped his man. We have still got to defend it whether it was a free-kick or not.

"We have got to be really vigilant in these situations. The Premier League is about concentration, pace and quality and concentration undid us a little bit.

"We need to pick up points. We are creating chances but we are not putting them in the back of the net. That is costly. But overall I am pleased with the quality we have shown."