John Danaher | Duration: 6:44 h | Video: H264 1920x1080 | Audio: AAC 44,1 kHz 2ch | 12,5 GB | Language: English Stay Competitive With - And Even Dominate - Younger, Faster Athletes With The Help Of The World's Most Sough After Jiu-Jitsu Coach, Professor John Danaher, As He Shows You His Formula For Success From Guard As An Older Grappler • John is one of the world's premier coaches in jiu-jitsu and submission grappling and now you can hear him break down the realities of the sport for aging