Manchester United's midfielder Marouane Fellaini wants teammate Anthony Martial to "improve" and says that the latter will find the English Premier League more difficult next season.
Striker Martial has been impressive since his big money move from Monaco last season and was instrumental in their 3-1 triumph over Derby County in the fourth round of the Football Association (FA) Cup on Friday.
"He can be a good player, but he must improve," Fellaini was quoted as saying by goal.com on Sunday.
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"Anthony has a lot of quality; he is quick, a good dribbler and always dangerous. He is young and has to keep going, learn every day and he will be a good player."
The Belgian also believes the 20-year-old French striker has the qualities in him to survive and be successful in England.
"He's settled in well, and enjoys the training and loves the Premier League, and loves playing games," he said.
"So, first of all, This is good for him, but also the club. He must train hard and keep going as next season will be more difficult because the Premier League will know him. But he has the quality to be a success."
