Tsuyoshi Kosaka (高阪 剛, Kōsaka Tsuyoshi, born March 6, 1970) is a Japanese mixed martial artist and professional wrestler who most recently competed in the Heavyweight division of RIZIN. A professional competitor MMA competitor since 1994, he has also competed for the UFC, PRIDE Fighting Championships, RINGS, Pancrase, and DEEP. Kohsaka is the former King of Pancrase Super Heavyweight Champion. His "TK guard" position, a precursor to modern butterfly guard, is famous for its efficiency; former UFC champions Frank Shamrock and Maurice Smith have both credited him with having vastly improved their work from that particular position.
Koshaka is married and has two children; a son and a daughter. He now owns and operates a dojo in Japan where he trains his A-Square team. In 2012, Kosaka received an honorary Brazilian jiu-jitsu black belt from Yuki Nakai and was appointed a consultant member for the Japanese BJJ Federation. He registered his own grappling system, "TK Jiu Jitsu," shortly after.
Movies & TV shows
UFC 23: Ultimate Japan 2
UFC 23: Ultimate Japan 2 was a mixed martial arts event held by the Ultimate Fighting Championship on November 19, 1999 at Tokyo Bay NK Hall in Tokyo, Japan.
UFC 18: Road To The Heavyweight Title
UFC 18: The Road to the Heavyweight Title was a mixed martial arts event held by the Ultimate Fighting Championship on January 8, 1999 in New Orleans, Louisiana. The event was seen live on pay per vie...
UFC 21: Return Of The Champions
UFC 21: Return of the Champions was a mixed martial arts event held by the Ultimate Fighting Championship on July 16, 1999 at the Five Seasons Events Center in Cedar Rapids, Iowa. The event was seen l...
UFC 17.5: Ultimate Brazil
UFC Brazil: Ultimate Brazil (also known as UFC 17.5) was a mixed martial arts event held by the Ultimate Fighting Championship in São Paulo, Brazil on October 16th, 1998. The event was seen on pay per...
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