K-1 unveils an impressive line-up for a middleweight tournament in just its second HERO’S show, which takes place Wednesday in Tokyo. The event features fighters from RINGS, SHOOT, ZST, Pancrase and other promotions who will wage war to find out who is the one of the best 143-pound fighter on the Japanese circuit.

The tournament breaks down as follows:

Wrestler Kazuyuki Miyata tests RINGS Russia fighter Arslan Magomedov; Hideo Tokoro of Japan goes toe-to-toe with Luta Livre fighter Alexandre Franca Nogueira; boxer and judo stylist Koji Yoshida and Gracie Humaitá fighter Royler Gracie let’ em fly in Japan; Takehiro Murahama of Osaka Puroresu combats Remigijus Morkevicius of RINGS Lithuania; submission fighter Hiroyuki Takaya meets Scandinavian shoot fighter Jani Lax; Norifumi Yamamoto of the Purebred Tokyo and Poseidon Gym jiu-jitsu fighter Ian Schaffa take to the ring.

And in non-tournament bouts AMC Pankration fighter Bob Sapp battles Alan Karaev of RINGS Russia; kickboxer Ray Sefo makes his MMA debut facing Tae Kwon Do stylist Min Soo Kim; Peter Aerts also makes his MMA debut and challenges Sumo wrestler Wakashoyo; Judo fighter Yoshihiro Akiyama confronts Thai boxer Carl Toomey; Wrestler Katsuya Inoue tangles with SHOOTO fighter Akira Kikuchi; jiu-jitsu fighter Rodrigo Gracie Goes to war with former King of Pancrase Kiuma Kunioku.