The knee injury keeping Manchester United midfielder Marouane Fellaini out of action ‘remains a mystery’, according to ESPN.
The Belgian has been available for roughly half of United’s games this season, pulling out of the derby clash with Manchester City just 24 hours before the game.
Fellaini has not been seen in the Premier League since a ten-minute appearance off the bench in November.
ESPN report: ‘Fellaini has undergone further scans in a bid to get to the root of the problem but, so far, the injury remains a mystery. And that has left Mourinho and United’s medical staff unable to put a timescale on his return to action.’
Fellaini is out of contract at the end of this season and is refusing to sign the new deal currently on offer, instead asking for a longer contract.
“I’m worried about Fellaini and not about Luke Shaw, because Fellaini finishes his contract and Luke Shaw doesn’t,” said Mourinho last month when asked about the future of Shaw.