Jake O'Brien

Biography

Jacob Allen O'Brien is a retired American professional mixed martial artist who most recently competed in the Heavyweight division. A professional competitor from 2005 until 2012, he fought for the UFC, WEC, and DREAM.

Known For

UFC 100: Lesnar vs. Mir 2

as Self

UFC 82: Pride of a Champion

as Self

UFC 94: St-Pierre vs. Penn 2

as Self

UFC 65: Bad Intentions

as Self

DREAM 15

as Self

WEC 19: Undisputed

as Self

UFC Fight Night 8: Evans vs. Salmon

as Self

UFC Fight Night 14: Silva vs. Irvin

as Self

UFC Fight Night 6: Sanchez vs. Parisyan

as Self