Fabricio Werdum makes a successful return to the Octagon, showing off a more well-rounded game in his victory over Roy Nelson. Hear when - and where - Werdum would like to fight next.

Newly-crowned interim welterweight champion Carlos Condit talks about the gameplan behind his win over the ultra-tough Nick Diaz.

Now that Gray Maynard is finally in Frankie Edgar's rearview mirror, can the best lightweight in the world keep his belt from the WEC's unstoppable Benson Henderson? Find out February 25.

Go behind the scenes with superstar Roy "Big Country" Nelson as he navigates UFC 143 fight week in Las Vegas.

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Rabble-rouser Josh Koscheck meets his match in fellow wrestler Mike Pierce, who came to the UFC 143 with a prop...

Is it opposite day?! Nick Diaz walks out to cheers while Carlos Condit gets the boos at the UFC 143 weigh-in before their interim welterweight title fight.

NFC Champion Quarterback Eli Manning and a handful of other NFL Stars make their picks for the BIG Fight on Saturday night.

UFC 143 welterweight Josh Koscheck answers fan questions on Twitter: Hear what he has to say about trash-talk, fighting Wanderlei, wrestling skills and more.

Two technical, tenacious warriors who've both been slated to take on GSP find themselves fighting one another instead. Watch Nick Diaz and Carlos Condit as they prepare for their interim title bout.

Nick Diaz takes on Carlos Condit for the interim Welterweight title at UFC 143 this Saturday! Watch the UFC 143 Undisputed 3 Fight Simulation then vote if the game got it right for your chance to win at www.facebook.com

He's a bantamweight contender from Nova Uniao facing former title challenger Scott Jorgensen atUFC® 143. Renan Barao has shown that he can stand and bang or grapple with ease and has the credentials to back it up with one of the longest unbeaten streaks in MMA. Even though the 25 year-old is facing one of the top five bantamweights in the promotion, he's confident he'll extend his streak by one more. Go inside Barao's fight camp then catch his battle at UFC® 143: Diaz vs. Condit, live from Las Vegas on Pay-Per-View, Saturday, February 4 at 10PM/7PM ET/PT. And for the first time ever, catch this event in 3-D at your local theatre and on select cable operators. Check ufc.com for more

He returns to the Octagon™ for a scrap with Roy Nelson at UFC® 143. It's been six months since the Brazilian's last fight and Fabricio Werdum has been fine-tuning his skills at Kings MMA. Roy Nelson, meanwhile, is coming off a thrilling victory over Mirko Cro Cop at UFC® 137. Expect fireworks in this co-main event at UFC® 143: Diaz vs. Condit, live from Las Vegas on Pay-Per-View, Saturday, February 4 at 10PM/7PM ET/PT. And for the first time ever, catch this event in 3-D at your local theater and on select cable operators. Check ufc.com for more.

It's been a crazy couple of months, but Carlos Condit is ready and focused on his goal: beating Nick Diaz, and becoming the interim UFC® welterweight champion.

"I'm not trying to be the bad guy." Nick Diaz is excited to be fighting Carlos Condit, the man he considers the top fighter at 170lbs - after himself. Hear why he thinks he should be ranked among the best of all time.

Dana's first vlog for UFC 143 is a behind the scenes look at UFC on FOX Chicago...

Hear what the fighters have to say about their performances after the event.

Watch all fighters appearing in Saturday night's event weigh in LIVE from the Mandalay Bay Events Center in Las Vegas.

Watch all the fighters appearing in Saturday night's event answer questions from the press LIVE from Mandalay Bay.

Tune in Tonight January 28th at 5/8pm PT/ET on FOX