Anthony Martial's future is in fresh doubt at Manchester United.
RMC says the France international's current deal expires next summer and talks between his representatives and the club began at the end of last year.
Martial joined United in a deal worth £36m in 2015.
And Martial was open to extending his stay at Old Trafford.
But despite progress being made, the 22-year-old is yet to receive a concrete offer.
United chiefs promised that they would be in touch to finalise the deal but have failed to act upon their word.