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 71: Liddell vs. Jackson was a mixed martial arts event held by the Ultimate Fighting Championship. The event took place on Saturday, May 26, 2007 at the MGM Grand Garden Arena in Las Vegas, Nevada. The main event was the rematch between UFC Light Heavyweight Champion "The Iceman" Chuck Liddell and Quinton "Rampage" Jackson. Jackson was the only fighter to have an unavenged win against Liddell.

UFC Fight Night 1: Marquardt vs. Salaverry was an event held on August 6, 2005 at the Cox Pavilion in Las Vegas, Nevada. The event, aired on Spike, was the first UFC Fight Night event.

UFC 52: Couture vs. Liddell 2 was a mixed martial arts event held by the Ultimate Fighting Championship on April 16, 2005, at the MGM Grand Arena in Las Vegas, Nevada. The event was broadcast live on pay-per-view in the United States and Canada, and later released on DVD.

UFC 50: The War of '04 was a mixed martial arts event held by the Ultimate Fighting Championship at the Trump Plaza in Atlantic City, New Jersey. Headlining the card were Tito Ortiz and Patrick Côté. Côté was a late replacement for Lion's Den fighter Guy Mezger, who pulled out of the event due to a medical condition. It also featured the Middleweight debut of future champion Rich Franklin.

UFC 39: The Warriors Return was a mixed martial arts event held by the Ultimate Fighting Championship on September 27, 2002, at the Mohegan Sun Arena in Uncasville, Connecticut. The event was broadcast live on pay per view in the United States, and was the first UFC event to be released on DVD.

UFC 37: High Impact was a mixed martial arts event held by the Ultimate Fighting Championship at the CenturyTel Center in Bossier City, Louisiana on May 10, 2002. The event was seen live on pay per view in the United States, and was later released on home video.