Complex sentence: There are four Mestres who currently serve as headmasters of Grupo Capoeira Brasil-the original founding Mestres, and Mestre Jelon Vieira, who was invited later to join.
Split into simpler sentences: There are four Mestres who serve as headmasters of Grupo Capoeira Brasil. The original founding Mestres, and Mestre Jelon Vieira, who was invited later to join.