At UFC 51, heavy hitters Andrei Arlovski and Tim Sylvia battle it out in the Octagon in hopes to become the interim UFC heavyweight champion. Watch Arlovski take on Bigfoot Silva in the main event at UFC Fight Night Brasilia.

Georges St-Pierre vs. Jay Hieron, David Loiseau vs. Charles McCarthy, and Ricco Rodriguez vs. Tim Silvia are featured in this episode of UFC Unleashed.

PRIDE star Minotauro Nogueira battled Tim Sylvia for the interim crown over a tough two-and-a-half rounds in 2008.

At UFC 81, former PRIDE heavyweight champion Antonio Rodrigo "Minotauro" Nogueira battled former UFC heavyweight champ Tim Sylvia for the interim UFC heavyweight title. Watch the entire fight for free!

At UFC® 81, Minotauro Nogueira used his vaunted jiu jitsu game to submit Tim Sylvia, becoming the only man to win both the UFC® and PRIDE® heavyweight titles.

This episode of UFC Wired features Minotauro Nogueira vs. Tim Sylvia, and Jon Koppenhaver vs. Jared Rollins.

Tim Sylvia vs. Minotauro Nogueira UFC® 81

Gabriel Gonzaga vs. Carmelo Marrero and Tim Sylvia vs. Randy Couture are featured in this episode of UFC Unleashed.

Matt Hughes vs. Georges St-Pierre, Chuck Liddell vs. Renato Sobral, and Andre Arlovski vs. Tim Sylvia are featured in this episode of UFC Unleashed.

In a much-anticipated fight, Randy Couture took on heavyweight champion Tim Sylvia. In a five-round war that kept the sellout crowd on its feet the entire fight, Couture and Sylvia showed the world exactly why fans love this sport.

Tim Sylvia vs. Andrei Arlovski UFC® 59

Forrest Griffin vs. Elvis Sinosic, Evan Tanner vs. David Terrell, Jeff Monson vs. Branden Lee Hinkle, and Tim Sylvia vs. Wesley Correira are featured in this episode of UFC Unleashed.