Brock Lesnar will defend his crown against Frank Mir

The big guns are lined up this coming July 11 at Mandalay Bay Events Center, Nevada. UFC titles will be at stake. Who will steal the lights out of Las Vegas?

The Ultimate Fighting Championship brings the biggest event in mixed martial arts history in UFC 100 as two championships will be on the line in heavyweight and welterweight in PPV live.

UFC heavyweight titleholder Brock Lesnar defends his crown against rival Frank Mir in their highly-anticipated grudge match.

VS

UFC welterweight champion Georges “Rush” St-Pierre puts his belt on the line as he goes up against Brazilian knockout artist Thiago “Pitbull” Alves.

VS

Other UFC 100 matches will also include:

Jon Fitch vs Paulo Thiago
Dan Henderson vs Michael Bisping
Yoshihiro Akiyama vs Alan Belcher
Mark Coleman vs Stephan Bonnar
Dong Hyun Kim vs TJ Grant
Jon Jones vs Jake O’Brien
Mac Danzig vs Jim Miller
CB Dollaway vs Tom Lawlor
Shannon Gugerty vs Matt Grice

Who will own the limelight in the biggest event in mixed martial arts history? The UFC 100 will give us the answer live from Las Vegas, Nevada this July 11, 2009 7PM PT / 10PM ET. It is Brock Lesnar vs Frank Mir and Georges St-Pierre vs Thiago Alves.