BJJTree.com

Mitsuyo Maeda > Carlos Gracie > Helio Gracie > Rickson Gracie > Marcelo Behring > Fernando Yamasaki > David Jacobs (Black Belt)
David Jacobs ( BJJ Tree Lineage ):
David Jacobs Official Website
Fightworks Podcast Interview (Episode 153, 2/15/2009)
Off the Mat with the Crusher Video Interview (8/11/2013)


BJJTree.com ( Brazilian Jiu Jitsu Lineage )