The midfielder came to the limelight after starring for Morocco in their successful 2022 World Cup campaign, where they reached the last-four stage. United signed him on a loan deal worth €10 million (£8.6m/$10.9m) from Fiorentina in the summer, with an option to make his move permanent in the summer of 2024 for €25m (£21m/$27m).
The Sun now reports that the Premier League club are unlikely to trigger the option of making his transfer permanent next year as they are happy with Kobbie Mainoo's progress with the senior team.