Manchester United manager Jose Mourinho has admitted he is "worried about Marouane Fellaini's contract situation, report the Manchester Evening News.
United triggered an extension in Fellaini's deal at the start of the year to keep him at the club until next summer but the 29-year-old will be free to speak with other clubs in the January transfer window.
Fellaini scored four goals in eight appearances before he suffered a medial knee ligament injury in Belgium's World Cup qualifying win over Bosnia and Herzegovina earlier this month. Michael Carrick and Zlatan Ibrahimovic are the only other United players whose contracts do not include the option of an additional year.
Six United players - including Luke Shaw - are technically out of contract next summer but Mourinho has indicated the club will prolong their deals and is not concerned by Shaw's situation.
"I’m worried about Fellaini and not about Luke Shaw," Mourinho explained. "Because Fellaini finishes his contract and Luke Shaw doesn't."
Mourinho faces Tottenham coach Mauricio Pochettino for the eighth time in the Premier League on Saturday but is reluctant to assess the Argentinian as he attempts to end Spurs' 10-year trophy drought.
"It’s not for me to judge that," Mourinho replied. "Pressure, no pressure, has to win the title, yes or no, it’s not my problem. I just have a very good relationship with him.
"He’s one of the guys I’ve known for many years and we’ve always had a very good relationship. I think he’s a very good manager, but don’t ask me more than that."