Manchester United may have won all three of their Premier League matches so far this season but Anthony Martial's poor form is becoming an increasingly big problem for Jose Mourinho.
Last week, reports suggested the Man United boss had warned Martial he needed to improve after their first couple of outings in the campaign.
But another ineffective performance on the left wing against Hull on Saturday has put his place in the starting XI under even more threat.
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Martial was the Red Devils' top scorer last season but a frustrating summer with France at Euro 2016 only saw him make a couple of appearances off the bench and disrupted any momentum he was hoping to maintain into the new term.
Despite his quiet start, the 20-year-old has kept his place in Didier Deschamps' French squad for the upcoming World Cup qualifiers against Italy and Belarus.
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And Deschamps believes Martial's heavy workload and poor consistency has seriously affected his confidence but doesn't think it will be too long before the youngster rediscovers his form for club and country.
"Anthony started the season very early and he has already played a lot in a system that is different to ours," Deschamps said.
"He needs to be more consistent despite his qualities.
"He can make the difference in a game because he's fast and powerful and can score and assist."
The France manager also claimed that Martial wasn't fully fit during their run to the final of the European Championships this summer, hence why he didn't feature as regularly as many were expecting.
He added: "At this age, even if he has already proved a lot, he has to go through that stage. He has to maintain a certain level of performance for weeks and months.
"He's played a lot. He's the one who played the most last season and that's why he was a little unfit at the European Championships. He has a lot of qualities. I've already told him that so he is aware but he must push himself a little harder sometimes.
"It's his state of mind. He's like that so he needs to battle with himself."
United boss Mourinho has previously hinted he will rotate his starting XI more frequently during September when the club begin competing in the League Cup and Europa League.
Based on his current form, Martial is likely to be one of the first big names dropped from his manager's first choice team.
With the likes of Marcus Rashford and Henrikh Mkhitaryan chomping at the bit to play from the start, Martial will need to impress during the international break to stand any chance of starting in the Manchester derby on September 10.