Either man has a chance, and I think unlike Barrera & Bivol, Johnson has the firepower to take Joe out, but conversely, the same applies to Joe, he's got inhuman power. I actually have no idea who wins this. Probably whoever lands the first clean punch. But gun to head, I slightly lean Callum.
This would be one of those fights were you don't walk away from the tv at any moment. Alot of power in that ring with not alot of defense lol
CJ has a big edge in skill, speed and boxing ability and he has the power in both hands to take out any LHW on the planet if he catches them right. So too does Smith but he doesn't possess the skill or the class to set it up like CJ does. CJ via stoppage providing he pays Smith's power the respect it deserves.