3: Alf Inge Haaland
Alf Inge Haaland knee injury is regarded as one of the dirtiest moves ever in football history, occurred in a match between Manchester United and Manchester City April 21, 2001 that ruined and ended his career in July 2003 after numerous attempts to comeback in action. Roy Keane’s knee-high horror thrust was responsible for this brutal injury that was initiated by him intentionally as he admitted it in his autobiography. Keane justified his action as a revenge but that charged him a red card, suspension for 5 games and fine of a £150,000 too. Due to this brutal, memorable conspiracy and its worse effects, it’s the 3rd worst injury in the list of Top 10 worst football injuries.