Brazilian jiu-jitsu ( ; , , ) ( BJJ ; ) is a martial art , combat sport , and a self defense system that focuses on grappling and especially ground fighting .
Brazilian Jiu-Jitsu ( Portuguese pronunciation : [ dʒɪwˈdʒitsu ] , English : / dʒuːˈdʒɪtsuː / ) is a martial art , combat sport , and a self defense system that focuses on grappling and especially ground fighting .