Officials announced that Tsuyoshi Kosaka who will be making his come back at “RIZIN FIGHTING WORLD GRAND-PRIX 2015 SAITAMA 3 DAYS” will be fighting James Thompson. Along with details on the 3 day “Fight Expo”.

Mark Godbeer (BAMMA/UK), Teodoras Aukstuolis (BUSHIDO/Lithuania), Goran Reljic (KSW/Poland) will be participating in RIZIN FIGHTING WORLD GRAND-PRIX 2015.

November 9th, RIZIN WORLD GRAND-PRIX 2015's special sponsor GYAO INC., official logo, and a new fight card was announced. MMA new comer Asen Yamamoto and his grandfather Ikuei Yamamoto, and Kron Gracie's father Rickson Gracie attended the press conference.

During Bellator 145, King Mo’s entry to the RIZIN FIGHTING WORLD GRAND-PRIX 2015 and Gabi Garcia vs Lei’D Tapa’s matchup was announced.

Additional fights were announced at the press conference for RIZIN FIGHTING WORLD GRAND-PRIX 2015 held on November 4th. RENA, Yuki Motoya, Yuichiro Nagashima, DJ Taiki and Hiroyuki Takaya appeared and spoke to the media about their thoughts about fighting at the end of the year.

It is now official that Tsuyoshi Kosaka will participate in RIZIN FIGHTING WORLD GRAND-PRIX2015 SAITAMA 3DAYS. Ever since his retirement in 20006, Kosaka has kept active as a gym owner and MMA commentator. At 45 years old, he claims that he more than ready to make his comeback stating that he is in the “Best shape of his life.”

On the 24th of October, Wallid Ismail owned JUNGLE FIGHTS 82 was held at the Esporte Clube Sirio in San Paulo Brazil. Sakakibara flew in to watch the 100kg title fight between Bruno Cappelozza and Sandro Da Silva, the fight which will determine who will be participating in the RIZIN FIGHTING WORLD GRAND-PRIX.

On October 22nd, RIZIN FF executive committee Chairman Nobuyuki Sakakibara and General Manager Nobuhiko Takada held a press conference to announce that former Sumo wrestler Kaido Höövelson aka BARUTO will be making his MMA debut during the “RIZIN FIGHTING WORLD GRAND-PRIX 2015 SAITAMA 3 DAYS” event.