Floyd Mayweather vs. Tenshin Nasukawa in photos

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.