Manny Pacquiao vs. Juan Manuel Márquez IV, billed as Fight of the Decade, was a professional boxing match. It was also billed unofficially as deciding the World Boxing Organization's "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.