Rigan Machado is an 8th degree black belt in Brazilian Jiu-Jitsu earning his rank under Carlos Gracie Jr. He is a former Jiu-Jitsu world champion and a veteran of the ADCC. He currently teaches out of his California Academy. Wikipedia
The definitive Wikipedia entry for Rigan Machado. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Rigan_Machado
