Takashi Miura of Japan (R) is knocked to the canvas by Francisco Vargas of Mexico (L) in the ninth round during their WBC super featherweight title fight on November 21, 2015 at the  Mandalay Bay Events Center  in Las Vegas, Nevada. Vargas, who in the fourth round was knocked down for the first time in his career, went on dethrone Miura with a ninth round TKO.     AFP PHOTO / JOHN GURZINSKI        (Photo credit should read JOHN GURZINSKI/AFP/Getty Images)