Manchester United have suffered a major injury blow after midfielder Michael Carrick was ruled out for up to six weeks with a fractured right elbow.

The 26-year-old suffered the injury during the latter stages of his side's Champions League victory over Roma at Old Trafford on Tuesday.

Although he appeared fine immediately after the game, x-rays have revealed the full extent of the problem, leaving Alex Ferguson facing a selection headache for Saturday's encounter with Wigan as Owen Hargreaves has also been ruled out.