Ultimate Fighting Championship (UFC) Heavyweight Champion Junior dos Santos will defend his title against Frank Mir in the main event of UFC 146 this Sat., May 26, 2012, at the MGM Grand Garden Arena in Las Vegas, Nevada.

But before we get to all that why not take a trip down Memory Lane back to "Cigano's" Octagon debut against Fabricio Werdum at UFC 90: "Silva vs. Cote" on Oct. 25, 2008, at the Allstate Arena in Rosemont, Illinois?

The fine folks at FUEL TV have released the entire fight video and it's now available for your viewing pleasure above. There isn't much to see, of course, as the Brazilian banger knocked his fellow countryman's head into the cheap seats with one of the most devastating uppercuts you'll ever see.

It was an emphatic debut for dos Santos, a 24-year-old unknown at the time who many thought was being fed to the wolves with such a tough match-up for his debut in the world's largest fight promotion. Instead, he knocked Werdum out in just over one minute and he hasn't lost since, including knocking out Cain Velasquez to win the heavyweight championship just last year on the UFC's debut on the FOX network.

Will Mir become the first man to defeat dos Santos inside the Octagon this weekend? Stay tuned.

In the meantime, be sure to check out our complete UFC 146: "Dos Santos vs. Mir" event archive by clicking here.