was a Japanese mixed martial artist and kickboxer who competed in the bantamweight division of the UFC. He quickly gained popularity in the Shooto organization due to his aggressive, well-rounded style and controversial persona. He moved on to K-1 Hero's, where he became the K-1 Hero's 2005 Middleweight Grand Prix Tournament Champion in December, 2005 after defeating Genki Sudo via a controversial TKO due to punches. Though by most measures he was a natural bantamweight, many of Yamamoto's most significant bouts have been in the lightweight division as it was the lightest division in Hero's. More recently, he competed in the Ultimate Fighting Championship in the bantamweight division, although he did not perform well there, going winless in his first four fights. Background Yamamoto came from a wrestling family. His father Ikuei Yamamoto represented Japan at the 1972 Olympic games in Munich and his sisters Miyuu Yamamoto and Seiko both won world championships in freestyle wrestling. Kid received his education in the United States and wrestled at Marcos de Niza High School in Tempe, Arizona, capturing three state championships (with a third-place finish as a freshman). During that time he lived and received training from Townsend and Tricia Saunders. He also trained briefly under Choi Mu Bae. At the age of 21, Yamamoto made a transition from wrestling to mixed martial arts despite his father's opinion that MMA is not a real sport. His first trainer in the sport was Enson Inoue, fiancé of Yamamoto's sister at the time. Mixed martial arts career Shooto Yamamoto made his professional mixed martial arts debut on March 2, 2001 against Masato Shiozawa at Shooto - To The Top 2, where he won by unanimous decision. He would go on to win his next two fights, both by TKO in the first round. During this time Yamamoto faced future Strikeforce Lightweight Champion Josh Thomson in Honolulu, Hawaii at Shogun 1. Yamamoto dominated Thomson with takedowns and strikes but caught an accidental kick to the groin three minutes into round two, causing the bout to be ruled a no contest. On May 5, 2002, Yamamoto suffered his first loss by TKO to Stephen Palling. As Yamamoto shot in for a double-leg takedown, Palling countered with a knee, opening a huge cut to Yamamoto's face. Though Yamamoto succeeded in slamming Palling, blood began pouring out of the cut and the referee stopped the fight. The doctors