LAS VEGAS, NV - DECEMBER 08: (L-R) Manny Pacquiao throws a left at Juan Manuel Marquez during their welterweight bout at the MGM Grand Garden Arena on December 8, 2012 in Las Vegas, Nevada. (Photo ... more 

LAS VEGAS, NV - DECEMBER 08: (L-R) Manny Pacquiao throws a left at Juan Manuel Marquez during their welterweight bout at the MGM Grand Garden Arena on December 8, 2012 in Las Vegas, Nevada. (Photo by Al Bello/Getty Images) less