WBoxing at the 2012 Summer OlympicsWCarl Froch vs. Lucian ButeWJulio César Chávez Jr. vs. Marco Antonio RubioWDavid Haye vs. Derek ChisoraWVitali Klitschko vs. Dereck ChisoraWSergio Martínez vs. Matthew MacklinWFloyd Mayweather Jr. vs. Miguel CottoWManny Pacquiao vs. Timothy BradleyWManny Pacquiao vs. Juan Manuel Márquez IV