Las Vegas, Nevada --- (L-R) Superstar Manny Pacquiao and four-time world champion Juan Manuel Marquez pose during the final press conference at the MGM Grand in Las Vegas Wednesday for the upcoming 4th fight of their historic rivalry. Promoted by Top Rank®, in association with MP Promotions, Zanfer Promotions, Márquez Boxing, Tecate, Wonderful Pistachios, Cinemax ‘Banshee,’ Smart Communications, Universal Pictures ‘Django Unchained’ and MGM Grand Hotel & Casino, Pacquiao vs Marquez 4 will be produced and distributed live by HBO Pay Per View from the MGM Grand in Las Vegas on Saturday, Dec. 8. --- Photos by Chris Farina/Top Rank.