On Saturday morning in Tokyo , 55,000 people will sit down in silence for the greatest Japanese fight in history. The Tokyo Dome is sold out; the fight will stop a nation and the pay-per-view numbers might set a global record. The Japanese boxing renaissance is in full and beautiful flow: Naoya Inoue and Junto Nakatani are their two biggest stars. Inoue’s figures are truly astounding, but Nakatani’s are similar; it is the rarest of fights in the most exotic of boxing locations . Two unbeaten men, both Japanese and both at their peaks, with multiple world championship belts on the line . It is the type of fight that can be compared to the long-overdue showdown between Joe Frazier and Muhammad Ali in their “Fight of the Century” over 50 years ago. It is also, arguably, the biggest fight to take place anywhere in the world between two boxers without direct USA or UK interest.…