WBC bantamweight champion Shinsuke Yamanaka made this one look so easy, he had to apologize to fans afterwards for them not getting their money's worth.
Yamanaka stunned Jose Nieves of Puerto Rico with a flurry of punches before sending the eighth-ranked challenger crashing to the canvas in the first round with a lightning quick left to successfully defend the crown for the fourth time on Monday night.
Almost immediately after the opening bell, Nieves looked out of his element. The Japanese champion, who has an incredible 74 percent knockout rate, taunted the challenger with flashes of his left before closing the gap and unleashing the knockout blow at Ota Gymnasium.