
9. War Machine
Probably the most despicable person on this list, War Machine is a notorious figure in combat sports. We also use the term successful ‘loosely’ in this case. He fought for both the UFC and Bellator throughout his MMA career. While he didn’t come close to winning a title with either promotion, he did enough to attract the attention of porn star Christy Mack. The pair became a hot and heavy couple, but love wasn’t in the air.

In 2014, he brutally assaulted Mack and her male friend. He left her with 18 broken bones and multiple broken teeth amongst other serious injuries. This wasn’t the first time that he was violent. Police arrested him multiple times before because he assaulted people. He received a life sentence with the possibility of parole after 24 years. He doesn’t expect to see the sun again.