Brazilian Jiu-Jitsu a martial art and combat sport that is defined by grappling techniques and ground fighting. Brazilian Jiu-Jitsu is based upon the ground fighting techniques of Kodokan Judo martial arts (called Ne-Waza), the fundamentals of which were taught to BJJ founder Carlos Gracie by Judo master Mitsuyo Maeda, who then adapted these techniques and created new practices and styles, which were then passed on the rest of the Gracie family.
The techniques taught by BJJ allow for a smaller, lighter person to successfully defend against, and tackle, a larger, stronger or heavier opponent by leveraging on the opponent’s girth and using it against him to bring him to the ground.
Ground-based techniques most notably involve applying joint-locks and chokeholds in order to successfully defeat one’s opponent on the ground. BJJ is an especially popular martial art amongst MMA fighters, who draw from its ground-based techniques to develop an all-round, complimentary fighting style that is properly equipped to tackle, and retaliate when tackled.