GGG is the only boxer who put Canelo on his limits after the latter's fight with Floyd Mayweather. Even though GGG is much ahead of their age and Canelo is in his prime, their fight is a close one and both of them have equal strength. That's why it needs a trilogy to end its journey.
Who knows Bivol might also put Canelo on his limits even the majority thinks that he is a heavy underdog.
What I will just refer to about Bivol is, that he won't just allow himself to be dominated by Canelo. He is also a champion and has no defeats up to date.
If only GGG was in the same age of Canelo now or yet vice versa then these two great boxers would be the greatest rival of all time, I think. Their instincts is too good and the way their move totally match with each other. It's unfortunate to know that GGG's time is already up and we don't know maybe this is his last year in the ring after the trilogy.
Yeah, it's unfortunate, but at least they have fought together. And if ever he lost his fight against Canelo, maybe chances are he will retire for good.
I haven't seen Canelo underestimate his opponents though that's why he is very successful. His work ethics and attitude have been mold to really train with 100% and give his everything in every fight.