One of the most combative and arguably violent players in the history of the Premier League, Roy Keane's excellent footballing ability has perhaps overshadowed some of the controversies attached to him throughout his career. He infamously confessed to deliberately attempting to end the career of Norwegian international Alf Inge-Haaland during a Manchester derby in 2001. The revelation prompted a retrospective £150,000 fine and five game ban, while Haaland never played a full 90 minutes again.
