The undefeated Floyd Mayweather keeps stacking the wins, as the world champion has just defeated kickboxer Tenshin Nasukawa in convincing fashion. After three consecutive knockdowns in the 1st round, the undefeated Nasukawa's corner threw in the towel as Mayweather danced in the ring. 

"It was all about entertainment. We had fun," Mayweather said afterward. "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." It should be noted that the match was an exhibition.

Although there were doubts that Mayweather would fight at all, it's been estimated that he made $64,000 per second in the 1st rd TKO. 

Source: Instagram