Former featherweight George Roop is looking to transfer into his 135lb frame for this bantamweight bout, a tall order against California prospect Reuben Duran, who showed in his 2011 Sub of the Night finish that he can battle on the feet or the mat.

After years of waiting, Georges St-Pierre and Nick Diaz will finally settle their differences inside the Octagon at UFC 158.

Nate Marquardt battles back from a nasty cut to finish Jeremy Horn with a guillotine choke at UFC 81.

Former Strikeforce welterweight champion Nate Marquardt makes his long-awaited return to the Octagon to face powerful puncher Jake Ellenberger at UFC 158. Watch Part 3 of the Countdown to UFC 158 now!

Journey with Dana White from the freezing cold tundra of Las Vegas to the 2013 MMA Awards to Montreal and finally Chicago.

UFC 158 welterweight contender Johny Hendricks lets us into his everyday life -- and talks about the one punch that changed it all.

Former UFC welterweight champion Carlos Condit is aware of Johny Hendricks' punching power, but says it won't stop him from brawling at UFC 158.

Johny Hendricks is out to prove that he's more than a heavy-handed wrestler with a win over former interim welterweight champion Carlos Condit at UFC 158.

Jake Ellenberger entered his welterweight showdown with Nate Marquardt having won seven of his previous eight fights. See if Jake 'The Juggernaut' can continue his successful stretch against the former Strikeforce champ at UFC 158.

Five years into his pro career, Quinn Mulhern is about to make his move on the world elite, a process that will speed up considerably should he defeat Rick Story one of the most hard-nosed fighters in the welterweight division.

Power puncher Jake Ellenberger knows he will have his hands full against veteran Nate Marquardt at UFC 158, but he feels confident he has the tools to beat any welterweight in the world. Watch UFC 158 live March 16 on pay-per-view.

Hear the "best" of Nick Diaz and Georges St-Pierre from their heated UFC 158 media conference call.

Dan Miller is rewarded for his patience with a fight-ending rear naked choke against Rob Kimmons at UFC Fight Night: Diaz vs. Neer.

Watch 3 prelims live and free at 6:30/3:30pm ET/PT - Rick Story vs Quinn Mulhern, TJ Dillashaw vs Issei Tamura, and George Roop vs Reuben Duran

Fired-up UFC 158 headliner Nick Diaz offers career advice and strategy suggestions for his opponent Georges St-Pierre.

Former Strikeforce welterweight champion Nate Marquardt says he is ready, willing, and able to meet Jake Ellenberger in an all-out war at UFC 158.

Former UFC interim welterweight champion Carlos Condit and top contender Johny Hendricks are set to battle in a bout with title implications. Watch Part 2 of Countdown to UFC 158 now!

Welterweight Jake Ellenberger had won seven of his previous eight fights in the Octagon leading up to this UFC 158 bout with Nate Marquardt. Marquardt, a former Strikeforce champion, looks for his first win in the Octagon.

UFC® Welterweight Champion Georges St-Pierre takes on bitter rival Nick Diaz in a highly-anticipated match-up on March 16 at Bell Centre in Montreal.

UFC welterweight champion Georges St-Pierre says he's been learning new skills and techniques, and that will spell trouble for the brash Nick Diaz at UFC 158.

Jake Ellenberger discusses his breakthrough performance, a headlining slot against former Strikeforce champion Jake Shields at UFC Fight Night 25.

Two fighters with two distinct personalities will finally meet in the Octagon when UFC welterweight champion Georges St-Pierre faces former Strikeforce welterweight champ Nick Diaz at UFC 158. Watch the Countdown to UFC 158 now!

After nearly 2 years away, longtime middleweight contender Nate Marquardt returns to the Octagon with a new look as a welterweight, and knockout artist Jake Ellenberger plans on sending Marquardt back to 185-pounds with a few taps from his heavy hands.