However, one man who could be more of a long-term replacement in the heart of the Manchester United midfield is Brazilian midfielder Andreas Pereira, who has spent the last two seasons out on loan in La Liga with Granada an Valencia respectively.
Martial, who joined from Monaco in an initial £36m deal in 2015, failed to agree terms on a new United contract last season and his current deal is set to expire next summer.
"You work individually with I'd say a personal trainer, which is not the case because he's a member of our staff, we left one guy behind to work with him, we knew by the physical point of view he would be OK."
Mourinho is still said to be keen on bolstering his squad though to challenge rivals and Premier League champions Manchester City.
"You can not do whatever you want in life".
Mourinho may have to persuade the board to sell Martial and bring in another winger.
Everything you need to know about Pakistan's general election
This poll has created a do-or-die situation for the incumbent party, which is now being helmed by Nawaz Sharif's brother, Shehbaz. A suicide bomber blew himself up near the vehicle of Gandapur as he left his house for election campaign.
The 0-0 draw took place at Levi's Stadium in Santa Clara, with the San Francisco 49ers' home ground able to house 62,000 fans at full capacity.
Martial failed to score for the second game running on United's five-match tour of the US.
"To win the World Cup can only be a positive thing", Mourinho told a news conference at UCLA on Tuesday.
"He will not be ready for the start of the season but we think he'll be ready for September".
The 29-year-old was absent when United travelled stateside for pre-season as reports emerged later that he had been denied visa as he has a suspended prison sentence hanging over him.
Jose Mourinho was desperate for Sanchez to play, despite his delayed arrival, with so many of his first-team regulars absent ahead of United's Premier League opener against Leicester City on August 10 following the World Cup in Russian Federation. "I am confident with them because they are all unbelievable players and Anthony looks very sharp".