Kobbie Mainoo may well have to be careful following the resumption of Manchester United’s season after the international break. Despite Manchester United playing just seven Premier League games so far this season, Erik ten Hag’s position as Red Devils manager seems to be up in the air. The team has not performed as well as they are capable of and last weekend’s 0-0 draw for United against Villa was a rather meaningless result. Kobbie Mainoo could well have an injury problem for United and he has withdrawn from England’s Nations League games during the international break but that may not be th…