And speaking on Martial's U-turn at the club, Mourinho has revealed he set a hard path for his player in order for him to realise his "phenomenal talent".
The 22-year-old striker hasn't made a France squad since March and didn't make the 23 that won the World Cup in Russian Federation over the summer.
"I never gave up my feelings that this was the right way for him, even if he had to go through hard moments". He knows it and I've told him.
The France worldwide has been in fine form for United of late, earning him a recall to the French squad after the blow of missing out on the World Cup in the summer, when Les Bleus won the competition without him.
The 22-year-old has struggled to maintain consistent form under Jose Mourinho during his first two seasons in charge.
France coach, Didier Deschamps, acknowledged Martial's ability to overcome his lack of consistency to rekindle his best form in recent times.More news: French authorities ground Ryanair plane over cash row
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"Anthony has been with the national team for a while now".
"Anthony has had good times in blue but also some hard, particularly at club level", Deschamps told a news conference after he unveiled his latest squad.
"Anthony is a young player who is in the process of acquiring, I hope, a certain level of maturity - his potential is incredible".
"What he is doing in Manchester now is closer to what he is able to do".
"Obviously I would like him to stay", United manager Jose Mourinho said on Friday.
He will be hoping to add to his 18 worldwide caps in Rotterdam next Friday and against Uruguay at the Stade de France on November 20.