Manchester United have reportedly been given an ultimatum by one of their players over the future of struggling manager Ruben Amorim.

The Portuguese tactician’s future is in some doubt after a dire start to life at Old Trafford, with a fuller update on the situation in this exclusive Daily Briefing report here.

To make things worse for Amorim, it seems that Man Utd midfielder Kobbie Mainoo already has serious reservations about this project, and is determined to leave if the manager isn’t replaced.

That’s according to a report from Fichajes, which states that Mainoo has given up on things improving at United under Amorim.

Kobbie Mainoo wants out of Ruben Amorim’s Manchester United

Kobbie Mainoo lining up for the England national team (Photo by Alex Livesey/Getty Images)

It perhaps seems unlikely that United would sack a manager based on this kind of ultimatum from one player, but it is a sign of just how much the former Sporting Lisbon boss seems to have lost the dressing room.

It also surely means Mainoo will be coming to the end of his time with MUFC, following some strong speculation over his future during the summer.

This led to ESPN also reporting that the talented young England international could look...