Is Demetrious Johnson The GREATEST OF ALL TIME?

Demetrious Johnson has done it all in the world of mixed martial arts, with the ONE Flyweight World Grand Prix Championship and 12 UFC World Titles in his trophy case. Before he challenges Adriano Moraes for the ONE Flyweight World Championship, take a look at the accolades of “Mighty Mouse!” Plus, relive Johnson’s ONE Flyweight World Grand Prix Championship victory over Danny Kingad at ONE: CENTURY! Subscribe to ONE Championship on YouTube: Connect with ONE Championship: