Dokonjonosuke Mishima

On May 19, 2008, Mishima dropped to featherweight (145 lb) to fight Masakazu Imanari. Mishima won by unanimous decision, becoming the DEEP featherweight champion. He also became the first man to capture the DEEP belt in two different divisions.

Mishima's fought Kenny Florian at UFC Fight Night 9 on April 5, 2007, in Las Vegas. Mishima lost to a rear naked choke, shortly after attempting to submit Florian with a knee bar.

On November 18, 2006, Mishima made his debut in the U.S. at UFC 65. Joe Stevenson, the winner of The Ultimate Fighter 2 who had just moved down to the lightweight division (155 lb), defeated Mishima in the first round by a guillotine choke.

On February 12, 2005, Mishima was victorious against fellow DEEP veteran Tomomi Iwama becoming the first lightweight (155 lb) champion of the organisation. However, Mishima didn't defend his belt and returned it one year later.

Mishima had four fights in PRIDE, winning over Charles Bennett and Marcus Aurélio and losing to Yves Edwards and Ralph Gracie. His final appearance with the company was in the reserve fight of PRIDE Bushido 9 on September 25, 2005, where he defeated fellow alternate Charles Bennett with an ankle lock.

On December 14, 2002, Mishima challenged Takanori Gomi for the Shooto welterweight (154 lb) championship, but lost by technical knockout due to punches.

Yoshitomi Mishima (三島睦智 , Mishima Yoshitomi) known as Dokonjonosuke Mishima (三島☆ド根性ノ助 , Mishima Dokonjōnosuke, born April 19, 1972) , also written Dokonjyonosuke Mishima, is a Japanese mixed martial artist and professional wrestler. He has competed professionally since 1998 in organizations such as Shooto, DEEP, PRIDE, the UFC and in his pro wrestling days he has competed in Kiyoshi Tamura's organization U-Style Pro Wrestling.