Manchester United chiefs accept Rasmus Hojlund is a project signing.
Hojlund passed his medical yesterday after Atalanta accepted an offer rising to 85m for the Dane earlier this week.
An announcement over the striker's signing is expected before Saturday's preseason friendly with Lens at Old Trafford.
The Manchester Evening News says senior figures inside United concede Hojlund is a 'rough diamond' who could come under huge pressure if comparisons are made with Harry Kane.
It's accepted that Hojlund will need time to settle and adjust to English football demands. Indeed, there isn't an expectation he will be a regular starter initially.
However, there is a belief Hojlund has the potential to develop into a world class striker.