is a Japanese mixed martial arts promoter and executive.
Saeki had worked as a photojournalist in various sports media and in 2001, he became the president of the promotion Deep 2001. Saeki joined Dream Stage Entertainment (DSE) to promote Pride Bushido seriesDEEP 2001: NEXT SHOW WILL BE THE LAST that started in 2003, where he held the position of public relations director.五味か桜井が中心！ 武士道GP・2005 ミドル級GP後、夏～秋に開催 NOBUHIKO TAKADA INTERVIEW PRIDE BUSHIDO 10
After the dissolution of DSE in 2007, Saeki continued to act as the president of Deep and later also became the supervisor of the female promotion Jewels2月19日はDEEPイベントですよ！ formed in 2008. In 2011, Saeki became one of the co-promoters for the amateur promotion Japan MMA League (JML).DEEP&SMASH PRODUCE JML2011 "JAPAN MMA LEAGE"
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