Born August 24, 1970. An American former mixed martial artist and Olympic wrestler, who last competed as a middleweight in the Ultimate Fighting Championship. He was the last Strikeforce Light Heavyweight Champion and was the last Welterweight (80 kg (176.4 lb)) and Middleweight (95 kg (209.4 lb)) champion of Pride Fighting Championships. Additionally, Henderson was the Brazil Open ’97 Tournament Champion, the UFC 17 Middleweight Tournament Champion, the Rings: King of Kings 1999 Tournament Champion and the Pride Weltwerweight Grand Prix Tournament Champion. During his career, Henderson also challenged for the UFC Middleweight Championship (2x), the UFC Light Heavyweight Championship and the Strikeforce Middleweight Championship. He was the first mixed martial artist to concurrently hold two titles in two different weight classes in a major MMA promotion. At the time of his retirement after UFC 204, he was the oldest fighter on the UFC roster. He is widely regarded as one of the greatest mixed martial artists of all time, having defeated a total of twenty-one MMA world champions across four major MMA promotions (UFC, PRIDE FC, Strikeforce, and RINGS).