Man Utd striker Wayne Rooney

Manchester United striker Wayne Rooney is fit to face AC Milan in Wednesday night's Champions League showdown.

Rooney had been rated as a major doubt for the second leg of the last-16 clash at Old Trafford after a knee injury ruled him out of Saturday's 1-0 victory over Wolves.

The England international aggravated the problem he sustained after coming off the bench in the Carling Cup final while on duty for Fabio Capello's England in their 3-1 friendly success over Egypt.

Sir Alex Ferguson was unhappy to see his star striker play twice in quick succession on the much-criticised Wembley pitch and hinted before the weekend that his top scorer would not be available to tackle the Serie A side.

But the 28-goal forward, who bagged a brace in the 3-2 success at the San Siro, will return to face Milan.

Rooney was back in training with his team-mates for the first time on Tuesday morning having surprised the medical staff with the speed of his recovery.

Ferguson told a press conference televised by Sky Sports News: "He is fit, I am glad to say that he is fit.

"He has showed a rapid improvement since Saturday morning. He was extremely doubtful, but he is OK."