CompuBox takes a historical look at tonight's middleweight clash between WBC champion Julio Cesar Chavez Jr. and challenger Peter Manfredo Jr. This one figures to be fought in the trenches, as 66% of their combined punches thrown per round were power shots. Manfredo needs to make use of his jab to avoid a toe to toe brawl, which will surely incite the pro-Chavez Houston crowd. Chavez opponents landed 45% of their power shots.