Rolker Gracie is an important figure in Brazilian Jiu Jitsu, being the 4th son of Helio Gracie and one of the main figures within the Gracie Humaitá organization, arguably the most historical of BJJ academies, from where he has influenced the technical growth of many world champions.
Rodrigo Ranieri is a World Jiu Jitsu Cup gold medallist (2006) and a top super featherweight grappler. A BJJ black belt under master Paulo Cesar Rezende, Ranieri (also known as “Mike” or “Mike Tyson”) moved to the United States where he has competed extensively in his weight class and open weight classes all around the country.
