Anthony Martial is determined to quit Manchester United this summer.

The Observer says the France striker determined to leave the club - but manager José Mourinho is minded not to sell the Frenchman.

Martial believes his career has stalled at United and the 22-year-old's contract expires next summer.

But United are expected to trigger a clause that allows for his terms to be extended for a year and so tie Martial down until summer 2020. By doing so, the club could fetch a far higher fee.

Martial is no longer a first choice, and scored only eight goals in 2016-17 and 11 last season.