UFC 57: Liddell vs. Couture 3 was a mixed martial arts event held by the Ultimate Fighting Championship on February 4, 2006. It was held at the Mandalay Bay Events Center on the Las Vegas Strip in Nevada, and broadcasted live on pay-per-view in the United States. Headlining were top UFC stars and former coaches of The Ultimate Fighter Chuck Liddell and Randy Couture.

UFC 55: Fury was a mixed martial arts event held by the Ultimate Fighting Championship on October 7, 2005 at the Mohegan Sun Arena in Uncasville, Connecticut. UFC heavyweight champion Andrei Arlovoski defends his title against hard-hitting Mexican striker Paul Buentello. The undercard is highlighted by The Ultimate Fighter Season 1 winner Forrest Griffin as he takes on Australia's Elvis Sinosic.

International Vale Tudo Championship

UFC Fight Night 5: Leben vs. Silva was a mixed martial arts event held by the Ultimate Fighting Championship on June 28, 2006. The event took place at Hard Rock Hotel and Casino, in Las Vegas, Nevada. This event served as the coming out party for Anderson Silva, the future middleweight champion of the UFC.