After losing his heavyweight title to Frank Mir, Minotauro Nogueira looked to rebound against legend Randy Couture. Watch the duo battle it out in the Fight of the Night from UFC 102 .

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.

At UFC 129, the biggest event in UFC history, Lyoto Machida retired Randy Couture in spectacular fashion. See the whole fight here.

Watch two former champions collide in front of the biggest crowd in UFC history: Lyoto "The Dragon" Machida looks to retire Randy "The Natural" Couture in dramatic fashion at UFC 129.

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.

Watch Brock Lesnar take on Hall of Famer Randy "The Natural" Couture at UFC® 91 - for free!

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