They already fought and Joshua did not.....................in fact knock his head off. In fact, Joshua struggled with him. Those calfs are smaller than mine and I'm 185 (currently) Speed and maneuverability wins contemporary HW fights, Usyk has shown us the way
You are obviously suffering from a low boxing IQ so perhaps you should go over to a site more in tune with your limitations such The Art of Shoeshining, or The History of Toilet Paper.