Vítor Vieira Belfort is a Brazilian professional boxer and retired mixed martial artist who competed for the Ultimate Fighting Championship (UFC), where he fought in the Heavyweight, Light Heavyweight and Middleweight divisions. He is the UFC 12 Heavyweight Tournament Champion, as well as the former UFC Light Heavyweight Champion and Cage Rage World Light Heavyweight Champion. Known for his explosive knockout power, Belfort is tied for fifth for the most finishes in UFC history with 14. Belfort also competed for MMA promotions Pride FC, Strikeforce, Affliction, and Cage Rage.

Wanderlei César da Silva is a Brazilian former mixed martial artist who competed in Japan's Pride Fighting Championships and the Ultimate Fighting Championship (UFC). He holds the record for the most wins, knockouts, title defenses and longest winning streak in PRIDE history. He is the former PRIDE Middleweight Champion and the 2003 PRIDE Middleweight Grand Prix Tournament Champion. He most recently competed for Bellator MMA in the light heavyweight and heavyweight divisions. In February 2024, Silva was announced as the next inductee in the "pioneer wing" of the UFC Hall of Fame.