UFC 113: Machida vs. Shogun 2 was a mixed martial arts event held by the Ultimate Fighting Championship on May 8, 2010, at the Bell Centre in Montreal, Quebec, Canada.

UFC 113 featured the rematch between Lyoto Machida and Mauricio Rua for the UFC Light Heavyweight Championship. The two first met at UFC 104, where Lyoto Machida retained his belt in a controversial unanimous decision victory.

Tim Credeur was scheduled to face Tom Lawlor, but was forced from the card with an injury and replaced by Joe Doerksen.

Joey Beltran was set to fight Chad Corvin, however after Corvin's paperwork was not approved by the Quebec Athletic Commission, Beltran ended up fighting Tim Hague.

Nick Catone was forced out of his bout with John Salter due to a back injury. UFC veteran David Loiseau was supposed to step in as his replacement, but Loiseau was denied a license to appear on this card due to alleged ties to organized crime. Salter ended up fighting returning UFC fighter Jason MacDonald. Loiseau would still make his return to the UFC having faced Mario Miranda at UFC 115.

Josh D. Koscheck (born November 30, 1977) is an American mixed martial artist from Waynesburg, Pennsylvania, a former collegiate wrestling champion and is currently fighting at welterweight for the Ultimate Fighting Championship. He made his debut with the organization on the first season of the reality television show, The Ultimate Fighter. Koscheck has fought for the company a record 19 times since 2005. Koscheck is often ranked among the top ten welterweights in the world by leading mixed martial arts publications. Sherdog currently ranks Koscheck at No. 7.

Josh Koscheck has a strong, well-documented base in collegiate wrestling, dating back to his years at Edinboro University of Pennsylvania, where he attended the university on an athletic scholarship. In 2001, during his Junior season, Koscheck won all 42 of his wrestling matches and went on to become the NCAA Division I Champion in the 174 lb weight class.

In addition to being a four-time NCAA Division I All-American (placing 4th, 2nd, 1st and 3rd respectively), Koscheck is a three-time recipient of the PSAC Wrestler of the Year award and earned the Eastern Wrestling League Achievement Award twice.

Paul Anthony Daley (born 21 February 1983) is an English professional mixed martial artist who has fought for EliteXC, Cage Rage, Strikeforce, BAMMA, Maximum Fighting Championship, Cage Warriors, Shark Fights, Impact FC, Pancrase and the Ultimate Fighting Championship. He holds notable victories over MMA veterans Martin Kampmann, Jorge Masvidal, Duane Ludwig, Scott Smith and Dustin Hazelett.

Paul's parents are from Caribbean background. Paul was first introduced to martial arts when he began taking karate at the age of 8, Paul has developed into one of the top strikers in all of the United Kingdom. Primarily based in England, Daley has been known to hold portions of his training camp at Mike's Gym in the Netherlands. In addition to his training in Holland, Daley is also a member of Team Rough House. At Rough House he trains with fellow Nottingham resident Dan Hardy and many other world class fighters.

Daley was the last ever Cage Rage welterweight champion. Paul has had notable fights against Jake Shields for the EliteXC welterweight championship and UFC veteran John Alessio.

Dana White (born July 28, 1969) is the current President of the Ultimate Fighting Championship (UFC), a mixed martial arts organization based in the United States.

Born in Manchester, Connecticut on July 28, 1969, White grew up in Las Vegas, Nevada, Ware, Massachusetts and Levant, Maine. White is a passionate Boston Red Sox fan. During his youth, he bounced back and forth between Boston and Maine. He attended the University of Massachusetts Boston but did not finish; however, while there he did launch a boxing program for inner-city youth.

White has a background as an aerobics instructor. In 1992, White established Dana White Enterprises in Las Vegas. He conducted aerobics classes at three gyms in the Las Vegas area and began managing MMA fighters Tito Ortiz and Chuck Liddell.

While working as a manager, White learned that Semaphore Entertainment Group, the parent company of the UFC, was looking for a buyer for the UFC. White contacted childhood friend Lorenzo Fertitta, an executive at Station Casinos, and a former commissioner of the Nevada State Athletic Commission. Within a month, Lorenzo and his older brother Frank bought the UFC, with White installed as its president. White currently owns about 9% of Zuffa, LLC, the entity the Fertitta brothers created to own and manage the UFC.

Kevin Ferguson (born February 8, 1974), better known as Kimbo Slice, is a Bahamian-American professional boxer, mixed martial artist and occasional actor. He became famous for street fights which were spread on the Internet, leading Rolling Stone to call him "The King of the Web Brawlers".

Slice left the underground fighting scene and signed a professional contract with EliteXC in 2007. After EliteXC declared bankruptcy in 2008, Slice became a free agent. Slice competed in The Ultimate Fighter: Heavyweights, where he lost in his first fight to veteran fighter, and eventual series winner, Roy Nelson. In his UFC debut, Slice defeated Houston Alexander in the The Ultimate Fighter: Heavyweights finale, but lost in his second UFC fight to Matt Mitrione at UFC 113.

Ferguson was born in Nassau, Bahamas, but moved to the United States as a child, growing up in Cutler Ridge, Florida. Ferguson was raised with his two brothers by mother Rosemary Clarke. He went to Bel-Air Elementary School, where Ferguson was reportedly involved in his first fight at 13 as he tried to defend a friend. He continued his studies with Cutler Ridge Middle School and later with Richmond Heights Middle School. He attended Miami Palmetto High School, where he was the star middle linebacker. In 1992, his house in Perrine, Florida was destroyed by Hurricane Andrew, forcing him to live in his 1987 Nissan Pathfinder for a month.