Ole Gunnar Solskjaer has been told that Amad Diallo will need to work on his “physical qualities” before he is handed a chance for Manchester United.
The 18-year-old completed his move to Old Trafford at the start of the window, after finally receiving a work permit.
United agreed a deal with Atalanta at the end of the summer window, but were made to wait for his arrival until he sorted a passport to make the move to the United Kingdom.
Diallo touched down in Manchester last week and is set to join Solskjer’s squad at Carrington in the coming days.
Despite only making a handful of senior appearances, reports have claimed that the winger will immediately be part of the senior set-up under Solskjaer.
Solskjaer has pleaded patience with his new signing, claiming it will take time for the youngster to adapt, but believes he has all the raw attributes to succeed in the Premier League.
That may prove to be the correct ploy with Diallo’s former coach, Denis Cerlini suggesting he will need to address his weaknesses before playing in England’s top-flight.
"Physically, Amad wasn't the strongest at Boca Barco, and his heading abilities aren't good," Cerlini told BBC Sport.
Giovanni Galli, who helped Diallo earn a move to Atalanta, also believes that there is work to do.
He said: "He must add a few kilograms of weight in order to survive in the Premier League.”
It’s a verdict also backed up by Tuttosport reporter Giordano Signorelli: "Diallo is definitely one of the most interesting footballers of his age.
"He wasn't intimidated on his Serie A debut, and played very well on his Champions League debut against Midtjylland last month as well.
"He is extremely gifted technically, but lacks some physical qualities. I believe he can overcome those problems if he works on them."