Floyd Mayweather really did fight Japanese kickboxing sensation Tenshin Nasukawa in a New Year's Eve exhibition in Japan, after claiming he never agreed to the much-publicized bout.

But it wasn't much of a fight. Smiling the whole time, Floyd knocked the smaller, half-his-age Nasukawa down three times in the first round for the victory. Nasukawa was in tears after his corner threw in the towel.

Mayweather, on the other hand, was happy with the exhibition, which is said to have netted him $9 million but won't count on his record.

• "It was all about entertainment. We had fun," Mayweather said. "I'm still retired. I don't look forward to coming back to boxing. I did it just to entertain fans in Japan. I'm still retired, I'm still 50-0, and Nasukawa is still undefeated and a hell of a fighter."

Floyd Mayweather vs. Tenshin Nasukawa [Full Fight]#RIZIN pic.twitter.com/PNXVv0EEXZ

— GIF Skull - Full Fight, But With Less Calories (@GIFSkull) December 31, 2018