World Series of Fighting, also known as WSOF, is an American mixed martial arts (MMA) promotion based in Las Vegas, Nevada. The inaugural WSOF event took place on November 3, 2012 and the main card was broadcast on the NBC Sports Network.

On May 15, 2013, WSOF announced a 4 man tournament to crown an Inaugural Middleweight Champion that will take place at WSOF 5. The participants announced are as followed: Jesse Taylor, Elvis Mutapcic, David Branch & Danillo Villefort

UFC 114: Rampage vs. Evans was a mixed martial arts event held by the Ultimate Fighting Championship on May 29, 2010 at the MGM Grand Garden Arena in Las Vegas, Nevada, United States.

UFC 119: Mir vs. Cro Cop was a mixed martial arts event held by the Ultimate Fighting Championship on September 25, 2010 at Conseco Fieldhouse in Indianapolis, Indiana, United States. The event was the first that the UFC has hosted in Indiana.

UFC Fight Night 23: Fight for the Troops 2 was a mixed martial arts event held by the Ultimate Fighting Championship on January 22, 2011 at Fort Hood, near Killeen, Texas.

UFC Fight Night 24: Nogueira vs. Davis was a mixed martial arts event held by the Ultimate Fighting Championship on March 26, 2011 at the KeyArena in Seattle, Washington. Dana White alerted followers on Twitter that Tito Ortiz had to pull out of his fight with Antônio Rogério Nogueira, after receiving a severe cut on his forehead, and would be replaced by Phil Davis.