WBC middleweight champion Sergio Martinez is busier, lands more and is the naturally bigger fighter. Have injuries slowed him? His last 5 opponents (Murray, Chavez, Barker, Macklin, Dzinzurik) landed 42% of their power shots. Miguel Cotto, a former champion at 140, 147 and 154, is making his middleweight debut, will he carry his punching power with him? Opponents (Rodriguez, Trout, Mayweather, Margarito, Mayorga) landed 35% of their power shots.