Amrabat completed a season-long loan move to the Red Devils from Fiorentina on transfer deadline day.
Manchester United will have the option to buy the Moroccan international on a permanent deal at the end of the season.
Former Red Devil Rio Ferdinand has opined the Premier League has a much higher intensity than Serie A and Amrabat will need to adapt quickly to make the grade.
Speaking on Vibe with Five, Ferdinand said: "All players need to adapt and if he can do that quickly I think he’ll be fine. The game is quicker than Serie A, definitely. He’s an international footballer who played well on the international scene so hopefully, he’s got the common sense and concentration to be able to make sure he’s right.
"I think someone like Casemiro with his experience of last year missing a few games because of his ill-discipline here and there and maybe naivety towards the league he might be able to give him a point in the right direction."
Amrabat has spent the last three seasons with Fiorentina, helping the Viola reach the Conference League final last season.
He also helped Morocco reach the World Cup semi-finals in Qatar last year.
