Martial, 20, was deservedly named Man of the Match after his performance against Derby County on Friday after grabbing two assists.
In a season of relatively little enjoyment, Martial has been a shining light but Fellaini has warned him that losing his surprise factor next season means he’ll have to work even harder.
“Anthony has a lot of quality, he is quick, a good dribbler and always dangerous,” Fellaini said.
“He is young and has to keep going, learn every day and he will be a good player. He’s settled in well and enjoys the training.
“He loves the Premier League and loves playing games. So, first of all, this is good for him, but also the club.
“He is good, has a lot of quality, he must train hard and keep going because next season will be more difficult because the Premier League will know him by then and be ready.
“But I think he has the quality to be a success.
“He can be a good player, but he must improve.”
There’s something deeply ironic about Fellaini telling Martial that he needs to improve isn’t there? After all, the Belgian has been woeful in central midfield yet still completes 90 minutes every game which continues to irk a lot of United fans.
Martial has already been singled out by plenty of teams this season as they double up on him in defence but players who are that good simply can’t be stopped by being crowded out.
It’s all a learning curve for Martial and although there is steep irony in Fellaini saying he must improve, he’s right in that the Frenchman needs to make sure he stays unpredictable in order to stay unstoppable in the future.