#2 Brock Lesnar vs Frank Mir 2 - UFC 100 (July 11, 2009)
Wrestling superstar, Brock Lesnar proved to the world that he belonged in the Octagon when he knocked out UFC Heavyweight Champion, Randy Couture to win the famous title at UFC 91.
In his first title defense, he was pitted against the only man to defeat him in his MMA career, former Champion, Frank Mir.
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Adding to the hype was the fact their clash was to take place under the historic banner of UFC 100, a landmark event for the company.
The drama prior to the bout was intense with Mir and Lesnar making no secret of their severe dislike of each other.
Lesnar, in particular, felt massively disrespected by Mir's comments towards him and was out to prove a point that he was the better man despite his previous defeat to his more experienced foe.
The fighting talk translated to the Octagon in a bloody fight where Lesnar proved himself to be the better man when was he was decisively victorious. A point he made sure Mir recognized when he barked at him following the match.
The hype translated to the box office with the show attracting a then-record 1.6 million pay per view orders.