Black Belt World Champion Atos HQ black belt Lucas Barbosa teaches one of his favorite subs from mount position: The Wrist Lock , during the 7:30am class on December 22, 2018.

Lucas Barbosa received his black belt from Andre Fabiano in July 2015, before moving to California to train with Andre Galvao at the Atos Jiu-Jitsu Headquarters. He is a 4x IBJJF Black Belt No Gi World Champion; a 1x IBJJF Black Belt World Champion and a Bronze Medalist at the ADCC World Championship.

Instagram: @lucasbarbosabjj