I'm not going to try to explain why GGG is a real fighter because no one here knows anything about techniques or methods so its a waste of time!!!
Try to get a grip on the the "expression" he's a good boy!

A "good boy" is a fighter who comes to fight and gives a solid effort! Its an old "inside boxing " expression and GGG knows some history within the sport and uses boxing expressions!
Thats the real meaning its NOT lil boy or a dirogitary comment its a respectfull one!!!

GGG's management has sent out contracts to all the middleweight contenders, no one seems to be willing to negotiate. I wonder why? Ray.