Career
He has also acted and has performed stunts in the 2007 film Strength and Honour. O'Sullivan vs. Hall
O'Sullivan vs. Nunez
It was announced following this defeat of Larry Smith that O'Sullivan would take on former world contender Milton Nunez.
O'Sullivan, before the fight, described the bout as "the most important fight of my life". He started the fight well with some solid body shots easily claiming the first round. He knocked Nunez down in the second round and ultimately scored an impressive victory, by TKO, over Nunez in the third round.
O'Sullivan vs. Betancourt
O'Sullivan defeated Dominican Melvin Betancourt by second round KO.