Marouane Fellaini may have suffered ligament damage in his knee during Belgium's 4-3 win over Bosnia and Herzegovina.

Roberto Martinez suggested the injury was serious after the game, saying: "We are all worried about Fellaini. We fear that there's ligament damage." 

Fellaini had been suffering from an Achilles problem earlier this week but was named in the starting XI on Saturday afternoon.

Fellaini has been productive so far this season for Manchester United.