Keitaro Nakamura is a Japanese professional mixed martial artist and grappler currently competing in the Welterweight division of RIZIN. A professional competitor since 2003, he has formerly competed for the UFC, World Victory Road, Pancrase, Shooto, DREAM, Vale Tudo Japan, and DEEP. He is the former Sengoku Welterweight Champion, Shooto Pacific Rim Middleweight Champion, and also won the World Victory Road Welterweight Grand Prix Tournament in 2010.

Brock Orville Larson is a retired American professional mixed martial artist who competed in the Welterweight and Middleweight divisions. A professional competitor from 2002 until 2016, Larson has formerly competed for the UFC, the WEC, and ONE FC.