Jake O'Brien

Jake O'Brien was formerly a fighter in the UFC's heavyweight and later light-heavyweight divisions. He was cut from the promotion's roster after a loss to the heavily favored prospect Jon Jones. He has since picked up victories over Dave Hess and Toni Valtonen after leaving the UFC.

For his first major fight since his UFC tenure, O'Brien took a big step up in competition, facing former Strikeforce light-heavyweight champion Gegard Mousasi in the opening semi-finals of the Dream 2010 light-heavyweight tournament. O'Brien came in severely overweight for the bout and was deducted a portion of his purse. To add injury to insult, Mousasi finished O'Brien with a tight standing guillotine choke under a minute into the fight.


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