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. The UFC Fan Expo took place at the Mandalay Bay Convention Center.

Spike TV once again broadcasted two live preliminary bouts one hour before the PPV broadcast began. In addition, the three-part UFC Primetime series returned to Spike TV in the build up for this event.

The full fight card featured five Ultimate Fighter season champions (Rashad Evans, Michael Bisping, Diego Sanchez, Amir Sadollah and Efrain Escudero), making it just the second UFC event (after The Ultimate Fighter 9 Finale the previous year) to feature 5 TUF champions. Another Ultimate Fighter winner, Forrest Griffin, was also scheduled to compete st this event, but had to pull out due to injury.

A bout between Forrest Griffin and Antônio Rogério Nogueira was scheduled for this event, however Griffin withdrew due to a shoulder injury. Griffin was replaced by Jason Brilz.

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.

Rashad Anton Evans (born September 25, 1979) is an American mixed martial artist from Niagara Falls, New York, currently signed to the Ultimate Fighting Championship. Evans won the heavyweight division of The Ultimate Fighter 2. Evans lost the UFC Light Heavyweight Championship to then undefeated Lyoto Machida at UFC 98. As of November 2011, Evans is currently ranked as the #3 Light Heavyweight fighter in the world by Sherdog and Yahoo! Sports.

Wrestling out of Niagra Wheatfield High School, Evans twice made it to the state finals tournament of New York by winning his weight class for his county, in which he received All-State honors both times. In 1997 he placed 4th in the state at 145 pounds. In 1998 he placed 4th in the state at 171 pounds. In 1999 he entered the National Junior College Athletic Association National Championships for the 165 pound weight class in which he finished in 4th place. Competing once again at this tournament in 2000, he was the champion of the 165 pound weight class.

Anderson da Silva (Portuguese pronunciation: [ˈɐ̃deʁsõ ˈsiwvɐ]; born April 14, 1975) is a Brazilian mixed martial artist. He is the current UFC Middleweight Champion and the promotion's longest reigning champion. With 14 consecutive wins and 9 title defenses, Silva holds the longest winning streak and title defense streak in UFC history.

Silva is ranked as the number one Middleweight in the world by multiple publications, and is the consensus No. 1 pound-for-pound fighter in the world according to ESPN, Sherdog, Yahoo! Sports, MMAFighting.com and other publications. UFC president Dana White has proclaimed Silva as "the greatest mixed martial artist ever."^{[undue weight? – discuss]} Silva is also the last Cage Rage Middleweight Champion and a former Shooto Middleweight Champion. Besides the UFC and Cage Rage, Silva has fought for a number of other MMA promotions including the Pride Fighting Championships, Shooto and Rumble on the Rock.

Although known primarily for his mastery of Muay Thai striking, Silva is also a Brazilian Jiu-Jitsu blackbelt, a rank he earned in 2006 from Antônio Rodrigo Nogueira who follows Gracie Lineage through Carlson Gracie, like Murilo Bustamante and the Brazilian Top Team. He began martial arts training at the age of 14, training Tae kwon do and earning a black belt by the age of 18. He is also a black belt in Judo and a yellow rope in Capoeira.