Barton is one of the most controversial English soccer players ever. The dynamic athlete infamously assaulted a teammate on the training field. He also assaulted a man during a night out in Liverpool. This is just a small taste of his seemingly endless list of offenses.
However, Barton’s longest suspension came in 2017 when the F.A. found him guilty of violating their betting rules. They sidelined him for 18 months and essentially ended his playing career. It was a harsh punishment but his record was stacked against him (via Bleacher Report).