All 17 fighters from the UFC 137 event this past month underwent drug testing and were clean for performance-enhancing drugs and recreational/drugs of abuse....
Following UFC 137, Nick Diaz explains why he called out Georges St. Pierre as his next welterweight opponent to meet up with in the octagon....
Cesar Gracie explains why he felt the BJ Penn vs. Nick Diaz fight was so important to both their careers and why it "had to happen"....
Saturday's "UFC 137: Penn vs. Diaz" event drew a reported 10,313 attendees and generated a live gate of $3.9 million....
Following a three round vicious bout with Nick Diaz at UFC 137, a battered BJ Penn announced to UFC broadcaster Joe Rogan his retirement from pro-fighting during his post fight interview....
Following UFC 137, which was held at the Mandalay Bay Events Center in Las Vegas, Nevada, bonuses were awarded for fight of the night, knockout of the night, and submission of the night....
Mirko "Cro Cop" Filopovic retires following bout with Roy Nelson at UFC 137....
UFC 137: "Penn vs. Diaz" event was held October 29, 2011 at the Mandalay Bay Events Center in Las Vegas, Nevada, full results of the evenings events inside....
Former Pride Grand Prix winner Cro Cop talks about his disappointing record in the UFC and the importance of his bout with Roy Nelson at UFC 137....
Weigh-ins took place in Las Vegas, NV at the Mandalay Bay Events Center for the UFC 137 pay-per-view event set to take place October 29, 2011....
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....
Nick Diaz says one of his biggest obstacles this weekend against BJ Penn will be overcoming the respect he has for him...
BJ Penn hopes to impress Dana White this weekend at UFC 137 and earn one last title shot, whether it be welterweight or lightweight....
UFC 137: Penn vs. Diaz is set to take place October 29, 2011 at Mandalay Bay Events Center in Las Vegas, Nevada, details on full card lineup....
The UFC 137 countdown airs tonight at 11:30 p.m. ET/PT on Spike TV....
Dana White announces that George St. Pierre has suffered a knee injury and won't be able to fight Carlos Condit in the main event of UFC 137 ...
UFC president Dana White confirmed the super-fight between St. Pierre and Diaz at UFC 137 on October 29th in Las Vegas, NV...
