Strikeforce Challengers 17: Bowling vs. Voelker III

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 84: Ill Will was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on May 24, 2008, at the MGM Grand Garden Arena in Las Vegas, Nevada. The card featured the return of Sean Sherk, who was suspended and stripped of his UFC lightweight title after he tested for steroids at UFC 73. He faced B.J. Penn, who had since won the vacated title.

UFC 82: Pride of a Champion was a mixed martial arts (MMA) event that took place on 1st March, 2008 at the Nationwide Arena in Columbus, Ohio. The main event was a UFC & Pride FC middleweight title unification match between UFC middleweight champion Anderson Silva and PRIDE FC welterweight champion Dan Henderson.

UFC 81: Breaking Point was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC) at the Mandalay Bay Events Center in Las Vegas, Nevada. The event featured Tim Sylvia and Antonio Rodrigo "Minotauro" Nogueira for UFC's Interim World Heavyweight Championship.

UFC 80: Rapid Fire was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC), that took place on January 19, 2008 at the Metro Radio Arena in Newcastle, England. Sean Sherk was originally slated to fight but tested positive for steroids. With the lightweight championship vacated, the Penn-Stevenson bout was altered to be for the undisputed championship.