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11. Roy Keane

The recipient of no less than 13 red cards in his career, former amateur boxer Keane was probably one of the hardest players in the modern era.

After one particularly nasty knee high challenge that debatably ended Alf Inge Haalands career, Keane thought it best to bring out a book to set the record straight. In a paragraph that obviously stated his remorse for Haalands decline, Keane said;