Two of the world's best mixed martial arts fighters descend upon Yas Island, Abu Dhabi on Saturday as Anderson 'The Spider' Silva and BJ 'The Prodigy' Penn put their UFC championships on the line in two intriguing title matches at UFC 112: Invincible.
The Ultimate Fighting Championship and Flash Entertainment, are presenting a double main event as Middleweight king Silva tackles Brazilian jiu-jitsu master Demian Maia, while lightweight ruler Penn defends against hot-streaking American Frankie 'the Answer' Edgar.
In addition to the much looked to main event, UFC 112: Invincible features a battle of mixed martial arts legends as Matt Hughes and Renzo Gracie square off in a historic welterweight clash.
Hughes looks to score a second win over a Gracie, while Renzo seeks to restore family pride following Hughes' defeat of cousin Royce four years ago.
Meanwhile, Britain's rapidly improving and vicious striking lightweight Terry Etim attempts to move up a level at UFC 112, as he meets relentless Brazilian Rafael Dos Anjos on the main card.
Finally, rounding off the main card will be a middleweight tussle between the 6-ft-6-in former winner of The Ultimate Fighter, Kendall Grove, and illustrious All-American wrestler Mark Munoz.