Demetrious Johnson, the most active champion on the UFC roster, prepares for his sixth title fight in two years against hard-hitting Arizonan Chris Cariaso.

Conor McGregor joins Joe Rogan to reflect on his big win over No. 5 featherweight Dustin Poirier at UFC 178.

Flyweight champ Demetrious "Mighty Mouse" Johnson takes on the next challenger to his throne, Chris "Kamikaze" Cariaso. Johnson looks to defend his title against Kyoji Horiguchi in the main event at UFC 186 in Montreal.

Dominick Cruz earned himself his first UFC knockout victory against Takeya Mizugaki in Round 1 at UFC 178. Don't miss Cruz vs. Faber on June 4 at UFC 199 on Pay-Per-View.

UFC correspondent Megan Olivi catches up with light heavyweight Daniel Cormier following the announcement of UFC 178.

Stars from UFC 178, including the ever-quotable Conor McGregor, flyweight champ Demetrious Johnson, and many more answer questions from the media before taking the Octagon on Saturday! Catch UFC 178, live from the MGM Grand, this Saturday on Pay-Per-View!

Conor McGregor remained undefeated in the UFC Octagon when he knocked out Dustin Poirier at UFC 178. Don't miss McGregor take on Jose Aldo for the featherweight belt at UFC 194 on Dec. 12.

Women's bantamweight top contender Cat Zingano talks about what motivates her to fight before she puts her 8-0 record on the line at UFC 178 this weekend.

International superstar Conor McGregor talks with UFC correspondent Megan Olivi about his win over No. 5 featherweight Dustin Poirier at UFC 178.

On his rise to the top, featherweight contender "The Notorious" Conor McGregor has to get past Dustin Poirier. McGregor looks to take the title away from reigning champ Jose Aldo at UFC 189 in Las Vegas.

Tickets for UFC 178: Jones vs. Cormier go on sale this Friday!

Former bantamweight champion Dominick Cruz prepares to fight in the Octagon for the first time in three years. Hear members of the media and Cruz explain the trials and tribulations that he experienced on his long but inspiring road back to the Octagon.

After nearly three years away from the UFC, Dominick Cruz made his return at UFC 178 and showed the world he was back after KO'ing Takeya Mizugaki in the first round at UFC 178. Cruz will attempt to earn his belt back on Jan. 17 at Fight Night Boston.

We step inside the Octagon with Dan Hardy & John Gooden to take a look at upcoming UFC 178 this weekend in Vegas.

Hear the former UFC bantamweight champion Dominick Cruz talk about his layoff due to multiple injuries and what it took for him to make his way back to the Octagon. He faces Takeya Mizugaki at UFC 178.

UFC flyweight champion Demetrious Johnson talks with Joe Rogan about his fifth title defense against Chris Cariaso at UFC 178.