Floyd Mayweather vs. Tenshin Nasukawa in photos

Floyd Mayweather, right, scored another victory, this time in an exhibition match against Tenshin Nasukawa, left. Keith Bedford for ESPN

Floyd Mayweather's KO victory in Round 1 over kickboxing sensation Tenshin Nasukawa in a boxing exhibition on New Year's Eve in Saitama, Japan, was as easy as it was effective.

Mayweather dropped Nasukawa multiple times in the first of a scheduled three rounds to earn $9 million, according to the "Pretty Boy."

The fight lasted 2 minutes, 19 seconds, meaning Mayweather made $64,748 per second.

Here's how it happened.