8. Stan Collymore
Former Liverpool striker Stan Collymore ruined his career due to his horrible personality. Back in 1995, Liverpool signed him for a £8.5 million fee, a record at the time. Collymore formed a deadly partnership with Robbie Fowler. Alas, Stan Collymore tainted his reputation by fostering a Spice Boys culture at the club. Collymore had an affair with the daughter of Liverpool manager, Roy Evans. To add insult to injury, in 2004 he was accused of being involved in dogging, thus losing his job at BBC.