Stephan Patrick Bonnar (born April 4, 1977) is an American professional wrestler and retired professional mixed martial artist. Bonnar competed as a Light Heavyweight in the UFC for most of his career. Bonnar was the runner-up on The Ultimate Fighter 1, his TUF Ultimate Finale loss to Forrest Griffin is considered to be one of the most important fights in the history of the UFC.[1] He is currently under contract for Bellator MMA. For most of his MMA career Bonnar played the “role of the underdog”, this is particularly exemplified in his fight with Anderson Silva at UFC 153.