Manny Pacquiao vs. Juan Manuel Márquez IV, was a professional boxing match. The winner of this bout would win a commemorative belt by the WBO known as "Champion of the Decade." This was the fourth and final meeting between Pacquiao and Márquez. The bout was held on December 8, 2012, at the MGM Grand in Las Vegas, Nevada and drew 1.15 million pay-per-view buys.
