London: Marouane Fellaini is uncertain if he will extend his stay at Manchester United but the midfielder believes manager Jose Mourinho will respect his decision if he chooses to end his spell at Old Trafford.
Fellaini came under fire for his inconsistent performances after signing from Everton in 2013 but the Belgian international has since become an important player in Mourinho's squad.
United triggered a one-year extension in the 30-year-old's contract at the start of the year, but agreeing a deal beyond the end of the current campaign is proving difficult.
"They made a proposal, probably another will follow. Whether I will accept it, I do not know. We will see. You cannot arrange something like that in a jiffy," Fellaini told Belgian website HUMO.
"If Manchester did not want me anymore, they would have said that for a long time."
Fellaini can begin talks with clubs when the January transfer window opens on Monday and could leave for nothing when his current contract expires at the end of the season.
The Belgian international has discussed his situation with Mourinho but does not expect it to affect his relationship with the manager.
"We talked about it. The coach is someone who respects the decisions of his players," he said.
Fellaini, who has played nine league games and scored three goals this season, is currently sidelined with a knee injury.