Stylistically/skill set wise he is a nightmare for anyone...yet he doesn't have the personality to overcome his particular style of fighting and sell tickets. Along with Rigo...the ultimate high risk/low reward fighter. I don't see GGG fighting him...i think size is just too big an issue with that fight. A Ward vs. Kovalev fight could be intriguing...just not sure if Ward would move up (with his options being so limited, don't think he will have a choice but to move up in weight).