Mauro Chueng is a Brazilian Jiu Jitsu black belt under the legendary Sérgio Bolão and one of the top instructors teaching in the southern region of Portugal, the Algarve - Albufeira. Chueng is also one of the founding members of the Rio Grappling Club, a strong BJJ team with affiliates all over Europe, a team which is led by Mr Chueng and Roberto "Risada" Atalla.