Nani accepts he must leave Manchester United to revive his career. The Daily Mail says the 26-year-old is out of favour at Old Trafford after a bust-up with Sir Alex Ferguson and an impasse over a contract extension.

Nani believes his relationship with Ferguson is beyond repair and has privately conceded his future is elsewhere, but United have not totally shut the door on the player, whose contract expires in 2014.

The winger, who missed Sunday's Manchester derby through injury, had a bust-up with promising United midfielder Davide Petrucci earlier this season. He has not played since he was hauled off during the Champions League match at Braga in early November.