Manchester United midfielder Marouane Fellaini will be out for a number of weeks after the Belgian undergoes surgery to correct a wrist injury that prevented him from featuring at the weekend.
Fellaini was ruled out of Saturday's encounter with Sunderland at the Stadium of Light, during which teenager Adnan Januzaj inspired the Premier League champions to victory.
David Moyes confirmed after the game that the prospects of a quick return for Fellaini did not 'look too good' and the club are expected to reveal the full extent of the damage on Monday.
The Mirror, though, is already reporting that Fellaini will be absent for several weeks and will fly to Belgium in order to have the issue assessed by the national team doctor.
Fellaini has sustained ligament damage and the problem will require an operation, serving as a blow to the 25-year-old as he still finds his feet as a Manchester United player.
Moyes recruited Fellaini from former club Everton for a fee of £27 million, and the central midfielder has made six starts for Manchester United in his brief Old Trafford career so far.