Legendary jiu-jitsu coach John Danaher dissects the nostalgic matchup between Renzo Gracie and Yuki Kondo ahead of their bout at ONE: REIGN OF KINGS. Danaher, one of the greatest minds in the game today, analyzes all of the factors that are coming into play in this historic clash, and why it’s a can’t-miss matchup no matter if you’re a new fan of martial arts or a hardcore follower.