John Danaher is widely regarded as one of the most important Brazilian Jiu-Jitsu coaches of his generation.
He was recently featured on the uber popular London Real show/podcast which has close to 2 million youtube Followers.
The host Brian Rose has been training BJJ since 2002 and has even trained with Danaher in New York.
You can see him roll here with top BJJ black belt and ADCC vet Ross Nichols:
Check out this brilliant interview with one of the most interesting people in Jiu-Jitsu.