Paulo Sergio is a 6th degree black belt in Brazilian jiu jitsu (BJJ) under Master Romero Cavalcanti, as well as an accomplished judo black belt, who is known as a BJJ pioneer in the southern region of Brazil, and in Paris - France, where he developed a network of academies under his PS Phoenix Jiu Jitsu association. A former Brazilian and European champion, Paulo Sergio is also known for his work as a referee for the sport's most prestigious federations: IBJJF and UAEJJF