Nasukawa cries his eyes out as laughing Mayweather knocks him down three times during first round before towel is thrown in
Mayweather sent kickboxing star crashing to the floor three times before Nasukawu was left in tears in his corner after stoppage with 44 seconds left of opening round
FLOYD MAYWEATHER knocked Tenshin Nasukawa out in the opening round as their big-money fight turned into farce.
Kickboxing star Nasukawa was left crying in his own corner after being sent tumbling to the canvas three times in the first two minutes of the fight in Saitama, Japan.
Mayweather, 41, boasted about earning $9million dollars to take on Japan's golden boy - and he collected his money with minimum fuss after making his opponent look foolish.
When the first bell sounded the unbeaten five-weight world boxing champion strolled out with a grin on his face as his 20-year-old took to the centre of the ring.
Nasukawa looked completely out of his depth in his first boxing fight, swinging wildly in an attempt to land a blow on his opponent.
One landed on the glove of Mayweather, and that appeared to sting him into action as he returned with a sharp flurry to deck the home favourite with a short left to the body.
The fight descended into farce when another dig from Mayweather left Nasuwaka staggering back like a drunk before falling down for a second time.
And another half-hearted punch to the side of the head did for the kickboxer a third time - and his corner threw in the towel after 136 seconds of the fight.