Gustavo Ximu Machado, a 3rd degree BJJ black belt shows us a really sneaky and painful way of attacking your opponent’s bottom foot from inside the knee shield. Your opponent will have to tap fast or suffer a broken foot!

Gustavo Machado is a Brazilian professional mixed martial artist who has competed for the International Fight League, Shooto, DEEP, RINGS, Pancrase and King of the Cage promotions. Machado was also briefly a member of the IFL New York Pitbulls.