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.
Filmography
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
