Manchester United want new boy Donny van de Beek to put on more muscle.
The Red Devils believe the creative Dutchman is a little weak from a physical standpoint.
To ensure he can handle the demands of the Premier League as a central midfielder, they are putting him on a special training program.
It is the same one given to the likes of Cristiano Ronaldo and Bruno Fernandes when they joined the club, per The Sun.
Van de Beek has largely been on the bench for United since signing from Ajax in the summer.
He scored for his country against Italy in a UEFA Nations League 1-1 draw in midweek.