Strikeforce Challengers 20: Britt vs. Sayers was a mixed martial arts event held by the Strikeforce. The fourteenth Challengers episode took place on November 18, 2011 at Palms Casino Resort in Las Vegas, Nevada.
Strikeforce Heavyweight Grand Prix Finals: Barnett vs. Cormier (aka Strikeforce: Barnett vs. Cormier) was a mixed martial arts event held by Strikeforce that served as the Heavyweight Tournament Finals. It took place on May 19, 2012 at the HP Pavilion in San Jose, California.
UFC 158: St-Pierre vs. Diaz was a mixed martial arts event held by the Ultimate Fighting Championship on March 16, 2013, at the Bell Centre in Montreal, Quebec, Canada. The main event was the culmination of the rivalry between Georges St-Pierre and Nick Diaz, with the latter having been vocal in wanting to fight the current champion for nearly two years.
