Victor Estima is a Jiu-Jitsu black belt under Carlos Gracie Junior, who worked extensively with Zé Radiola during the early years of his career. Victor made a name for himself as one of the top middleweight competitors of his generation, earning medals in important tournaments such as the European Open and World Championships, though he is remembered by many as one of the creators of the "Estima Lock", a common submission used in jiu-jitsu and a position Victor created together with his older brother, Braulio Estima.