![Jake O'Brien poster movie](https://image.tmdb.org/t/p/w154/b17zDUDgFVROCgXPgcOa9izSpQm.jpg)
Jake O'Brien
1984-09-25
The 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.