Jake O'Brien

Born

Sep 25, 1984 (40 years old)

Known For

UFC 100: Lesnar vs. Mir 2

UFC 82: Pride of a Champion

UFC 94: St-Pierre vs. Penn 2

UFC 65: Bad Intentions

WEC 19: Undisputed

UFC Fight Night 8: Evans vs. Salmon

UFC Fight Night 14: Silva vs. Irvin

UFC Fight Night 6: Sanchez vs. Parisyan