0 HDManny Pacquiao vs Juan Manuel Marquez IV: WBO Champion of the Decade Dec. 08, 2012 Manny Pacquiao vs Juan Manuel Marquez IV: WBO Champion of the Decade 2012 Manny “Pacman” Pacquiao vs Juan Manuel Marquez IV WBO Champion of the Decade MGM Grand Garden Arena, Las Vegas, Nevada, USA December ... Sports