Raphael Chaves, also known as "Catatau" is a well known Brazilian Jiu Jitsu black belt in the No Gi (submission wrestling) competition circuit. Originally from Brazil, Raphael Chaves focussed more on the No Gi aspect of grappling since he arrived in the USA having conquered titles in several important organizations, such as the NAGA, Arnold Classic and Copa America. Rapahel Chaves has also ventured in MMA.