A fired up Nick Diaz spoke with UFC Tonight analyst Ariel Helwani after his loss to Georges St-Pierre at UFC 158. Following the loss, Diaz appears to be heading towards either retirement or a rematch with GSP.

Jake Ellenberger spoke with UFC Tonight analyst Ariel Helwani after knocking out Nate Marquardt at UFC 158. Ellenberger's performance put the welterweight division on notice that 'The Juggernaut' is back.

An ecstatic Johny Hendricks spoke with UFC Tonight analyst Ariel Helwani about his huge victory over Carlos Condit. What more could Hendricks need to get a title shot against Georges St-Pierre?

UFC Welterweight Champion Georges St-Pierre retained his title in a thrilling battle with Nick Diaz at UFC 158. GSP is looking to take a vacation from fighting before returning to face his next challenger, Johny Hendricks.

UFC President Dana White talked with Ariel Helwani after UFC 158: St-Pierre vs Diaz. White breaks down the Nick DIaz retirement rumors, Johny Hendricks' title shot, and much more.

After an intense UFC 158 Weigh In, Nick Diaz spoke with Ariel Helwani as he prepares for his title fight against Welterweight kingpin Georges St-Pierre. Diaz is focused and angry, will that help him in the Octagon?

Johny Hendricks got through the UFC 158 Weigh In and prepares for his biggest fight yet against Carlos Condit. Hendricks told Ariel Helwani that fighting Condit 'changes everything' about his preparation, will his adjustments work at UFC 158?

Georges St-Pierre got past a heated UFC 158 Weigh In that featured a tense stare down between GSP and opponent Nick Diaz. GSP is confident that he will be able to finish the durable Nick Diaz. What do you think?

Watch the full UFC 158 pre-fight press conference with GSP, Nick Diaz, Johny Hendricks, Carlos Condit, and more.

Take a look at the chain of events that led to Georges St-Pierre facing Nick Diaz for the UFC welterweight title at UFC 158.

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.

Nate Marquardt makes his long awaited return to the UFC Octagon at UFC 158: St-Pierre vs Diaz. Marquardt's road back to the UFC runs directly through heavy hitter Jake Ellenberger and he'll have to pull out all the stops to leave UFC 158 with a win.

In a welterweight-heavy card, heated rivals Georges St-Pierre and Nick Diaz square off for the UFC welterweight title. Plus Johny Hendricks meets Carlos Condit, and Jake Ellenberger faces Nate Marquardt. Watch UFC 158 live on March 16 at 10pm ET/7pm PT!

UFC welterweights Georges St-Pierre and Nick Diaz got into it early in the now-legendary UFC 158 pre-fight media conference call.

Jake Ellenberger faces off against returning UFC veteran Nate Marquardt at UFC 158.

UFC Welterweight Champion Georges St-Pierre defends his title against dangerous opponent Nick Diaz at UFC 158. UFC 158: St-Pierre vs Diaz, LIVE on PPV Saturday, March 16th 10/7P ET/PT.

Nick Diaz sounds off on Georges St-Pierre heading into their fight for the UFC Welterweight Title at UFC 158. UFC 158: GSP vs Diaz goes down Saturday, March 16th 10/7P ET/PT.

Jon Anik and Kenny Florian preview one of the most anticipated UFC events of 2013, UFC 158: St-Pierre vs Diaz.

UFC Welterweight Champion Georges St-Pierre takes his training to the next level in preparation for his fight at UFC 158 against Nick Diaz.

Welterweight champion Georges St-Pierre faces his fiercest rival, Nick Diaz, in a long-anticipated showdown in Montreal.

Welterweight UFC champ Georges St-Pierre and nemesis Nick Diaz crossed paths in Canada for the first UFC 158 press conference.