Ruben Amorim recently managed his second game as AC Milan manager, a Milan derby which finished 1-1, and it’s clear what he’s learned from his Man Utd spell. After a 2-2 draw against Celtic in his first game as Milan manager, the preparation ramped up with a marquee game for Ruben Amorim. The former Man Utd manager has made no secret of the fact that he made mistakes at Old Trafford, but hasn’t gone into detail. After watching his second game as manager, it’s clear that he’s learned one lesson from his Man Utd spell, vindicating Kobbie Mainoo. What this also does is vindicate Mainoo, who was ostracised from the Man Utd XI for having the exact same skill set Amorim now wants in his Milan team.