Diaz expresses regret for not sticking with his initial desire to test his hand in the boxing ring when his Strikeforce contract was completed as UFC 137 main event approaches.
BJ Penn speaks on no longer feeding into the hype surrounding his career and his feelings on no longer needing to talk smack leading up to bouts as UFC 137 approaches.
Viacom, parent of MTV Networks, bought a majority stake in Bellator Fighting Championships and will start airing the promotion's bouts on Spike in 2013
