Manny Pacquiao vs. Juan Manuel Márquez IV was held on December 8, 2012, at the MGM Grand in Las Vegas, Nevada, billed unofficially as deciding the WBO 'Champion of the Decade' belt. Pacquiao was knocked out with one second left in the sixth round by a right to the jaw, sending him toppling face-first into the canvas.
Manny Pacquiao
Juan Manuel Marquez
Miguel Vázquez
Mercito Gesta
Javier Fortuna
Patrick Hyland
Yuriorkis Gamboa
Michael Farenas
Dodie Boy Penalosa Jr
Jesus Lule
Ernie Sanchez
Coy Evans
Jose Ramirez
Corey Seigwarth
Alexis Hernandez
Jazzma Hogue