If Manny was to get his "spark" back and rattle off a few impressive wins, and GGG was the biggest fight out there and willing to meet at a catchweight, I think Manny would take the fight for sure. Size doesn't scare him at all. I think GGG is just too big for Manny, who is only like 5'6" and started at Flyweight. Still, if that was the biggest fight out there and the public REALLY wanted to see it, Manny would make it happen. I have no doubt.