RIZIN 13 will be the promotions biggest event to date from the Saitama Super Arena in Saitama, Japan. Following the tragic loss of Norifumi “Kid” Yamamoto this month, two generational talents from their respective combat sports will compete in a clash featuring two of Japan’s best. Yamamoto’s protege Kyoji Horiguchi will strap on the big gloves when he crosses over into kickboxing to take on undefeated 20-year-old phenom Tenshin Nasukawa. In addition to the headliner, Mirko Cro Cop returns against streaking heavyweight Roque Martinez, former Invicta FC atomweight champ Ayaka Hamasaki meets DEEP titleholder Mina Kurobe, and former UFC fighters Diego Brandão and Daron Cruickshank will clash at lightweight.