Manny Pacquiao vs Juan Manuel Márquez IV (2012)

Manny Pacquiao vs Juan Manuel Márquez IV was held on December 8 2012 at the MGM Grand in Las Vegas Nevada billed unofficially as deciding the WBO Champion of the Decade belt Pacquiao was knocked out with one second left in the sixth round by a right to the jaw sending him toppling facefirst into the canvas