Ruben Amorim's Manchester United loses key player to injury in match against Manchester City

The Manchester United midfielder was forced off injured in the derby against Manchester City. His history of injury problems, including 27 missed games last season, raises serious concerns.

Manchester United suffered an early setback in their Premier League derby clash against Manchester City, with midfielder Mason Mount forced off injured just 14 minutes into the game.

Mount signaled to the bench that he needed to be substituted after falling to the ground. Kobbie Mainoo replaced him in midfield.