Three more match-ups for ONE FC: Kojima vs. Leone, including a brand new main event were revealed by the Singapore based promotion on Wednesday. Headlining the Sept. 13 card, which is set for the 15,000-seat Istora Senayan Stadium in Jakarta, is a flyweight fight between Shinichi Kojima and Andrew Leone. The co-main event pits two hard-hitting lightweights together with former ONE FC lightweight champion Kotetsu Boku (20-8-2) taking on decorated Muay Thai fighter Vuyisile Colossa (5-4). The Japanese fighter is best known for stopping Zorobabel Moreira to win the title, while the South African is a Muay Thai world champion who has been in MMA wars with the likes of Eduard Folayang and Yui Chul Nam. The third fight to be announced today pits Princeton University graduate and NCAA Division One level wrestler Jake Butler (2-0) against Kyokushin Karate black belt and kickboxing world champion James Kouame (1-1).