The Belgian national team coach has leapt to the defence of the beleaguered Red Devil, claiming he will silence his critics at the World Cup.
Signed from Everton by recently-ousted Red Devils manager David Moyes for £27.5 million, the 26-year-old struggled to rediscover the form that made him such a success at Goodison Park.
A total of 15 appearances for United have brought no goals for the Old Trafford club, with some already calling for the Reds to cut their losses this summer and look to alternative midfield solutions.
But despite his poor domestic form, the former Standard Liege man remains an integral part of Belgium’s plans for the World Cup, with Wilmots this week moving to dismiss any criticism of the player and his continued presence in the national team squad.
Speaking to Belgian newspaper Het Laatste Nieuws, the 45-year-old said rejected talk of Fellaini not being up to scatch, stating: "I have no doubts about Marouane."
The Belgian coach went on to point the finger at Manchester United for the midfielder’s recent woes, in what was a thinly-veiled criticism of the way the player was deployed under Moyes.
"I don't understand why Manchester United bought him to play him in a system of two No 6s. Marouane is a box-to-box player,” he said.
And while, when it comes to midfield options, Belgium are spoilt for choice, Wilmots has backed Fellaini to star in Brazil this summer.
“The World Cup is a good chance for him to take revenge,” he said.
While the former Everton man’s future at the club remains in the balance, United fans will surely hope he has a good World Cup, which would then either allow him to return to the first-team fold with new-found confidence, or be sold for a sum closer to what the Reds originally played.