9. Mauro Icardi
The Argentine striker was busy building himself a career as one of Europe’s hottest strikers a few years ago, then he met Wanda Nara. Nara was the then wife of Icardi’s teammate and compatriot Maxi Lopez, and the pair were busted having an affair right behind the former Barca striker’s back. He moved to Inter, but followed that up by marrying Nara, appearing in adverts with her and then having her children’s names tattooed on his arm. This flagrancy has angered many fans and critics alike and showed a blatant disrespect for a fellow professional and someone he used to be able to call a friend.