Jose Mourinho has warned Anthony Martial that he must grasp his chance at Manchester United after claiming the French forward has failed to take his “big opportunity” at Old Trafford, ESPN FC reports.

The 21-year-old has struggled to make an impact under Mourinho having scored 17 goals during his debut season at United last year.

So far this campaign, Martial has scored 6 goals in 21 appearances and Mourinho expects more from the former Monaco youngster.

“I don’t think he lost his focus,” Mourinho said. “I think he just didn’t catch with both hands a big opportunity he had.

“I think even you would be here now asking me why [Juan] Mata is not playing or Marcus Rashford doesn’t have a chance or why Jesse Lingard, a national team player, is not playing.

“So this is a reality. We have Rashford, Lingard, Mata, [Henrikh] Mkhitaryan, Martial, and I cannot give to the same player chance after chance after chance and not consider the effort of the others.

“Anthony played against Liverpool, a big match for us and for him too, and then the next game I went to Mata and Mkhitaryan. This is the situation.

“But when I have five players for two positions, I have to praise the good performance and for that I have to take people out of the team. That’s simple.”