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