I think you mean Daiki Kameda. Won UD12.
Daiki Kameda right? He beat Guerrero for the IBF Super Flyweight title.
Tomoki Kameda (who I assume is the "Takashi" referenced) last boxed in August for the WBO bantamweight belt.
I'm sure if the Mayweather and Canelo fight was free on tv in the U.S. then it would get much more than 15 million viewers.