UFC 112: Invincible was a mixed martial arts event held by the Ultimate Fighting Championship on April 10, 2010, on Yas Island, Abu Dhabi, United Arab Emirates. Due to the time zone difference in Abu Dhabi, UFC 112 was shown live on pay-per-view in the United States at 1 pm ET (10 am PT), with a replay at the regular time of 10 pm ET (7 pm PT).

The event was the first held in the Middle East following the purchase of a 10 percent stake in the UFC parent company Zuffa by Abu Dhabi government-owned Flash Entertainment. It was also the first UFC event to be held outdoors in an open-air arena. The Concert Arena (at the Ferrari World theme park) was erected as a temporary venue for the event and was torn down the following week.

Vitor Belfort was expected to fight Anderson Silva for the Middleweight Championship; however, Belfort injured his shoulder during training and was unable to fight at the event. It was thought that Silva would instead take on Chael Sonnen, but he was ruled out due to a large cut suffered at UFC 109 in his fight with Nate Marquardt. Silva ended up fighting Demian Maia.

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.

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.

Demian Maia Baptista (Portuguese pronunciation: [ˈdemiɐ̃ ˈmajɐ] born November 6, 1977) is a Brazilian mixed martial artist and Brazilian Jiu-Jitsu practitioner. He currently fights for the Ultimate Fighting Championship. Maia is currently ranked the #6 middleweight in the world by Sherdog and Yahoo! Sports., and the #8 middleweight fighter in the world by MMAWeekly.

Born in São Paulo, Brazil, Maia trained in Judo as a child. When he became a teenager, he also began studying Kung Fu and Karate. By age nineteen, Maia was introduced to Brazilian Jiu Jitsu by his cousin. After four years and seven months, Demian received his black belt under Fabio Gurgel. Demian Maia finished college and graduated with a degree in Journalism. He is currently a third degree black belt in Brazilian Jiu-Jitsu and has won several major tournaments under Team Brasa.

He won the 77–87 kg weight division at the 2007 ADCC Submission Wrestling World Championship, defeating Yushin Okami, Rafael Lovato, and Tarsis Humphres before armbarring Flavio Almeida in the finals. He also won the 2007 Super Challenge under 83 kg belt, defeating Vitelmo Kubis Bandeira by rear naked choke and Gustavo Machado by a judges decision before going on to defeat Fabio Negao by guillotine choke in the finals. On the heels of his ADCC championship in 2007, Maia released an instructional DVD series titled The Science of Jiu Jitsu I & II in collaboration with the World Martial Arts company.

Frank James Edgar (born October 16, 1981) is an American mixed martial artist, who competes as a lightweight in the Ultimate Fighting Championship and is a former UFC Lightweight Champion. His first career loss came against Gray Maynard in 2008, which marked the beginning of a noted rivalry. He later avenged the loss to Maynard with a KO victory in 2011. As of March 2012, he is ranked as the #2 lightweight in the world by Sherdog.com.

Born and raised in Toms River, New Jersey, Frankie Edgar wrestled at Toms River High School East, making it to the New Jersey state championship tournament on three occasions, placing second as a junior and fifth as a senior. Edgar is the oldest of 3 children, Edgar went on to compete in the NHSCA Senior Nationals and placed second before he finished high school. He continued wrestling at Clarion University of Pennsylvania, where he qualified for the nationals all four years there. Edgar is also an assistant coach for the Rutgers University wrestling team.

Edgar entered his first mixed martial arts fight with only a few weeks of training outside of his wrestling background. Edgar originally trained with Rob Guarino of Rhino Fight Team, but today he is part of the Gracie system under Ricardo Almeida in Hamilton, NJ. Since seventh grade Edgar has wrestled with Steve Rivera at Elite Wrestling NJ in Jackson, NJ. His boxing trainer is Mark Henry of Millstone, NJ.