UFC 79: Nemesis was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC), that took place on December 29, 2007 at the Mandalay Bay Events Center in Las Vegas, Nevada. The main event featured the highly anticipated rubber match between former UFC Welterweight Champions Georges St. Pierre and Matt Hughes. The Co-main event featured a fight between Chuck Liddell and Wanderlei Silva.

UFC 72: Victory was a mixed martial arts event held by the Ultimate Fighting Championship. The event took place Saturday, June 16, 2007 at The Odyssey in Belfast, Northern Ireland. Martin Kampmann was scheduled to fight Rich Franklin, but was forced to withdraw due to injury. Yushin Okami replaced Kampmann in the main event.

UFC 67: All or Nothing was a mixed martial arts event held by Ultimate Fighting Championship. The event was held Saturday, February 3, 2007 at the Mandalay Bay Events Center on the Las Vegas Strip in Nevada. The main event was Travis Lutter vs. Anderson Silva for the middleweight title, however Lutter was not able to make weight and the fight was changed to a non-title contest.

UFC 63: Hughes vs. Penn was a mixed martial arts event held by the Ultimate Fighting Championship on September 23, 2006. The event, originally subtitled "Hughes vs. St. Pierre," was scheduled to feature a UFC Welterweight Title match between champion Matt Hughes and Georges St.-Pierre. Nevertheless, a groin injury—which was reported early in August—forced St.-Pierre off the card.

UFC 85: Bedlam was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on June 7, 2008, at The O2 Arena in London, United Kingdom. The main event was ultimately changed to Matt Hughes against Thiago Alves. Hughes took the fight on short notice as a favor to the UFC and Alves came in four pounds overweight.

UFC: Fight for the Troops, also referred to as UFC Fight Night 16, was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on December 10, 2008 at the Crown Coliseum in Fayetteville, North Carolina. The event helped raise money for the Intrepid Fallen Heroes Fund, which provides support for severely wounded military personnel and veterans and the families of military personnel lost in service. The event reportedly raised $4 million during its three-hour broadcast. The event was officially announced on September 17, 2008 during UFC Fight Night: Diaz vs. Neer. Brian Stann and Frank Edgar were originally slated to appear on the card, but injuries forced both fighters to withdraw. Razak Al-Hassan replaced Stann, and Jim Miller came in with only three weeks notice as a late replacement for Edgar. The referees assigned for the event were Dan Miragliotta, Donnie Jessup, Al Coley and Mario Yamasaki.