The Ultimate Fighting Championship (UFC) is a U.S.-based mixed martial arts division that incorporates elements of karate, jiu jitsu, Muay Thai, boxing, and wrestling into a no-holds-barred style of fighting known for its brutality. Masters in the skills of boxing, jiu-jitsu, karate, tae kwon do and more, the original warriors battled it out to the bloody end. UFC 13 featured two four man tournaments, a lightweight and a heavyweight tournament, as well as two alternate bouts and a Superfight between Vitor Belfort and Tank Abbott. UFC 13 also marked the first appearance of MMA legend and future UFC Champion Randy Couture, as well as Tito Ortiz, who was an alternate in the lightweight tournament.