More than 55,000 people in Toronto at UFC 129 saw 47-year-old Randy Couture fall to Lyoto Machida’s karate technique in spectacular fashion. Commentators Joe Rogan and Mike Goldberg could only find one word between them: “Wow.”

Two years before, Randy Couture had dished out a beating for Liddell like he’d never experienced in the Octagon, even outstriking 'The Iceman.' In their UFC 52 title rematch, Liddell was able to repay the favor.

A profile of UFC fighter turned businessman, Uirjah Faber; veteran middleweight Hector Lombard on his first UFC fight; Randy Couture on the evolution of MMA; and Joe Rogan's top 8 upsets in UFC history.

FREE MMA VIDEO: This episode features a look at Mike Russow - the police officer, Fabricio Werdum's favorite move, and UFC by the numbers.

The UFC Hall of Famer shares his top four pound-for-pound fighters currently active in the UFC.

Rashad Evans mic'd up for the Jones vs Rampage fight, behind the scenes at the UFC 146 Press Conference, and Randy Couture discusses the pound-for-pound debate.

Donald Cerrone vs. Dennis Siver, Nam Phan vs. Leonard Garcia, Vitor Belfort vs. Yoshihiro Akiyama, and Lyoto Machida vs. Randy Couture are featured in this episode of UFC Unleashed.

"The Natural" goes out with his head held high - hear what the legend has to say after his shocking loss to Lyoto Machida.

Rewatch all of the action of the UFC 129 Weigh-In. Don't forget to watch UFC 129 Saturday night St-Pierre vs. Shields at a NEW TIME 9 pm ET/6 pm PT.

In this week's episode, Jose Aldo talks legacies, Jake Shields lets his guard down, and Randy Couture teaches the choke that finished James Toney.

Former champions Randy Couture and Lyoto Machida talk about their matchup of conflicting styles at UFC® 129: St-Pierre vs. Shields.

"I'm fighting because I truly believe that I can regain the title." Lyoto Machida is determined to emerge from his bout with Hall of Famer Randy Couture victorious.