Chael Sonnen and FloSports present Submission Underground 2 LIVE on FloGrappling.com Sunday, Dec. 11, at 2:30 p.m. PT. A submission-only grappling event, SUG 2 brings the world's best grapplers and mixed martial artists together to determine the best submission fighters in the world. There are no ties and no draws. One person wins and one person loses every matchup.

Former PRIDE heavyweight kingpin Fedor Emelianenko returns to the ring for the first time this year when he meets three-time UFC title challenger Pedro “The Rock” Rizzo. Emelianenko, once the sport's pound-for-pound best, looks to run his current win streak to three since suffering a trio of losses under the Strikeforce banner.

Strikeforce World Grand Prix Quarter-Finals: Overeem vs. Werdum, also known as Strikeforce: Dallas, was a mixed martial arts event held by Strikeforce. The event took place on June 18, 2011 at the American Airlines Center in Dallas, Texas. The main card aired on Showtime while the preliminary card aired on HDNet.

Pride 34: Kamikaze was a mixed martial arts event held by Pride Fighting Championships on April 8, 2007 at the Saitama Super Arena in Saitama, Japan. This was the last Pride show promoted by Dream Stage Entertainment before the sale of the company (see Pride Worldwide). Although Wanderlei Silva and Mauricio Rua were negotiating with Pride to compete, Silva did not participate because of a medical suspension received from the Nevada State Athletic Commission. The commission had stated that if a Japanese doctor cleared Silva for competition, they would consider lifting the suspension three days early, but this did not come to fruition. Gilbert Yvel was originally slated to fight Bazigit Atajev, but Atajev withdrew due to an internal disease

UFC 65: Bad Intentions was a mixed martial arts competition held by the Ultimate Fighting Championship on November 18, 2006 at the ARCO Arena in Sacramento, California. The card featured the anticipated rematch between Matt Hughes and Georges St. Pierre for the UFC Welterweight Championship.

UFC 61: Bitter Rivals was a mixed martial arts event held by the Ultimate Fighting Championship on Saturday, July 8, 2006. The main event was a Heavyweight Championship match between champion Tim Sylvia and former champion Andrei Arlovski. The co-main event was the highly anticipated re-match of TUF 3 coaches Tito Ortiz and Ken Shamrock.

UFC 59: Reality Check was a mixed martial arts event held by the Ultimate Fighting Championship on April 15, 2006 at Arrowhead Pond, in Anaheim, California, and broadcast live on pay-per-view in the United States and Canada. This was the first-ever UFC event held in California after the state's legalization of mixed martial arts contests.

UFC 57: Liddell vs. Couture 3 was a mixed martial arts event held by the Ultimate Fighting Championship on February 4, 2006. It was held at the Mandalay Bay Events Center on the Las Vegas Strip in Nevada, and broadcasted live on pay-per-view in the United States. Headlining were top UFC stars and former coaches of The Ultimate Fighter Chuck Liddell and Randy Couture.

UFC 35: Throwdown was a mixed martial arts event held by the Ultimate Fighting Championship at the Mohegan Sun Arena in Uncasville, Connecticut on January 11, 2002. The event was seen live on pay per view in the United States, and later released on home video.

UFC 29: Defense of the Belts was a mixed martial arts event held by the Ultimate Fighting Championship on December 16, 2000 at Differ Ariake Arena in Tokyo, Japan.

UFC 27: Ultimate Bad Boyz was a mixed martial arts event held by the Ultimate Fighting Championship on September 22, 2000 at Lake Front Arena in New Orleans, Louisiana.