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OSAKA, JAPAN - DECEMBER 31: Hisashi Amagasa of Japan (L) and Guillermo Rigondeaux of Cuba exchange punches during the WBA/WBO world super bantamweight bout between Guillermo Rigondeaux of Cuba and Hisashi Amagasa of Japan at Bodymaker Colosseum on December 31, 2014 in Osaka, Japan. (Photo by Ken Ishii/Getty Images)

OSAKA, JAPAN - DECEMBER 31:  Hisashi Amagasa of Japan (L) and Guillermo Rigondeaux of Cuba exchange punches during the WBA/WBO world super bantamweight bout between Guillermo Rigondeaux of Cuba and Hisashi Amagasa of Japan at Bodymaker Colosseum on December 31, 2014 in Osaka, Japan.  (Photo by Ken Ishii/Getty Images)