Zhang is massive, it seems that guy's are continuing to get bigger. I used to think guys getting bigger at HW wasn't going to happen , but it is. While guys being that big in boxing have existed before , they were more of novelty like Valuev. These guys are more well rounded and skilled. Joyce was manhandled in that last fight and needed to come in bigger. Zhang's jab hit's like a truck and that jab is piston like, seems like both they know it's gonna be a war like the last one. These guys aren't " fat " and sloppy at near 300 pounds. Both fighters understand this is a meaningful figh. Again, getting hit by 270 pound guys feels a whole lot different.