Hollywood, Ca. --- "OPENING DAY" ---  Superstar Manny Pacquiao arrives at the Wildcard Boxing Club to open camp in preparation for the upcoming fourth fight of his historic rivalry against three-division world champion Juan Manuel Marquez. Promoted by Top Rank, in association with MP Promotions, Zanfer Promotions, Marquez Boxing, Tecate and MGM Grand, 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.