Juventus have been advised to buy one Manchester United player this summer, by a former Old Trafford keeper. Sir Jim Ratcliffe and his new footballing decision-makers at Old Trafford will have some big calls to make this summer. With multiple players expected to be for sale, it’ll be a busy one which could see a rebuild occur for Erik ten Hag. One player that Manchester United will be looking to sell is Mason Greenwood, whose value has skyrocketed since last summer after some very solid performances. With known interest in La Liga, it now seems like Serie A is also a possible destination for G…