1........ 2. When does a fighter ever become a bigger puncher when he moves up in weight? Some guys take their relative punching power up trough the higher weight classes. But they don't become better KO artists. If Canelo will me be able to punch as effective at MW as he did at WW and JMW that still won't make him a big KO artists like GGG. 3. We will see. I don't think it's that strange Canelo looks more muscular now. He has the kind of body that puts on muscle easy.