Amrabat arrived from Fiorentina at the end of the transfer window but, after not signing in time to face Arsenal, he was forced to withdraw from the Morocco squad due to a minor injury.
It means the midfielder is also out of our game with Brighton & Hove Albion on Saturday but Ten Hag expects the 27-year-old to be fit again soon, with big dates on the horizon domestically and abroad, including the UEFA Champions League campaign getting under way, starting at Bayern Munich next Wednesday.
In an exclusive interview with club media to be published in full at 07:00 BST on Saturday morning, the manager told Zarah Connolly that he is looking forward to having Amrabat, who played under him at FC Twente, available.