Tom Brady
Brady is the most successful NFL player in history and a serial winner. He had one of the strongest mentalities in gridiron football but wasn’t afraid of turning to the dark arts. Scandals including DeflateGate arose when the quarterback cheated on the field. Meanwhile, he attracted negative attention when he trash-talked the Saints after an interception (via USA Today).

However, nobody can accuse him of lacking self-awareness. Brady acknowledged his bad sportsmanship in a Sirius XM interview. He explained that he tries his best to behave well on the field but it’s not always easy. Brady said: “I’m trying to be a good sport because a lot of times I’m not a good sport, I can be a pretty bad sport.”