Marcelo Alonso is a (5th degree) black belt in Brazilian jiu jitsu under Master Carlson Gracie, being one of Carlson's most famous and respected students. Alonso was an instructor at the Carlson Gracie Academy in Copacabana - RJ for many years, looking after illustrious athletes such as Leo D'Ilha (RIP), Paulo Filho or Renato Tavares before moving to the United States in the late 1990's, settling in the Seattle area, where he quickly became a reference among the local grappling scene.