Manchester United striker Wayne Rooney expects a tough battle against AC Milan defender Alessandro Nesta tonight.

Nesta has been passed fit for the Champions League clash.

"Personally I know how tough it is going to be, especially if Alessandro Nesta is playing for them," said Rooney.

"In the other games, his positional sense was brilliant, and it was difficult. Because he reads the game so well, it was difficult to play against him.

"It's where I have to take the chances I get, because there won't be many. In the Premier League you know that you're always likely to create a few chances every game.

"But in the Champions League, especially the knockout rounds, you know if you have a chance you really have to take it - because you might not get another chance in the game."