Ricky Hatton
Hatton became something of a folk hero in his native Manchester after a string of successes. The boxer had everyman qualities and fought some of the best in the business. But he suffered deflating losses to Floyd Mayweather and Manny Pacquiao. These severely dented his confidence and he resorted to substance abuse.

‘The Hitman’ always enjoyed a few beers and a kebab but this went too far. Hatton sank into depression and considered ending his life before he turned back from the darkness. He credits his daughter with changing his perspective. His partying remains legendary but they were also nearly his downfall (via TalkSport).