Kobbie Mainoo suffered a calf injury in training that ruled him out of Manchester United’s trip to Aston Villa.

Mainoo injured his calf during a training session, which is a common injury in football caused by muscle strain or small tears. The injury was serious enough that the club confirmed he would not play in the upcoming match against Aston Villa. This was a setback because Mainoo was a potential starter due to another player's suspension. The injury forced him to miss several weeks of playing time as the medical team assessed his recovery.