Sunderland winger James McClean struck an FA Cup winner at Peterborough United yesterday.

McClean's goal was his second in six days after scoring in the Black Cats' 4-1 win over Wigan last week.

Martin O'Neill, who has now masterminded five wins from his first seven games as Sunderland boss, has been impressed with how quickly the left-sided player has taken to top-flight football.

"He has played three on the trot now and he's been brilliant," O'Neill said.

"In my first week here he played against Manchester United in a reserve game that I thought was going to be called off because of 70mph winds.

"The conditions were dreadful but he quickly came in to the game.

"He did brilliant on the night and he showed a real aptitude for it. We took a chance with him. He had a little bit of luck when he came on against Blackburn but he electrified the place and he has continued to do that."