WBO/WBA super bantamweight champion Guillermo Rigondeaux (15-0, 10 KOs) battled back from two knockdowns to defeat Hisashi Amagasa (28-5-2, 19 KOs) and retain his titles by eleventh round stoppage on Wednesday night at the Bodymaker Colosseum in Osaka, Japan.
The double Olympic champion from Cuba, who defected and now lives in Miami, looked to be in control for the first six rounds in Osaka but he was stunned by a fine shot to the chin that sent him to the canvas in the seventh and he went…