Từ khóa Bjj
Leglocks: Enter The System by John Danaher 1970
If you talked to the one hundred most knowledgeable grapplers in the world and asked them, “Who would you most like to learn grappling from?” ninety-eight, ninety-nine, or maybe even all one hundred of them would give you the same answer: John Danaher. There is just no equal.