Las Vegas, Nevada ---Top Rank held the press conference to the undercard of Pacquiao-Marquez at the MGM Grand Thursday. Gamboa talkes on Farenas for the WBA Interim Super Featherweight Championship. 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 Stacey Verbeek.