Master Marcelo Alonso, a highly respected coral belt (7th-degree black belt) in Brazilian Jiu-Jitsu, trained under the legendary Master Carlson Gracie. As one of Carlson's most renowned students, Marcelo became an esteemed instructor at the Carlson Gracie Academy in Copacabana, Rio de Janeiro. Over the years, he has played a pivotal role in shaping the careers of numerous Jiu-Jitsu athletes globally, leaving a lasting impact on the sport.