There is Sportsbet sponsored prediction competition for this fight Canelo vs Bivol, so you can make your picks and win free bets.
You can find this topic in Games and rounds and participation is completely free: https://bitcointalksearch.org/topic/sportsbetio-canelo-vs-bivol-prediction-contest-saturday-5397177
Thanks for the link. I'm not aware there's a free bet there.
Regarding the fight, it's common to see low odds for Canelo as you said, he is the Favorite. Even Bivol is an undefeated boxer and a Champion too, bookies think that Canelo has all the edge on this fight that's why we are seeing odds like that. I'm seeing that way too and we can't deny the fact that Canelo is expected to be the dominant here.
We can only see if Bivol has that punch that can knockdown Canelo on May 7.
Definitely Bivol can punch based on his records and you can see some highlights of his fights in youtube. It's that if he can land that to Canelo, and if that land flush, can Canelo handle it? Alvarez has one iron chin, it hasn't been broken, even GGG didn't broke it when they fought twice. On the other hand, Canelo is just steamrolling on his past opponents, all champion in 168 lbs. So if there is a chance to score a knock down or even a knock out, it will be Canelo, in my opinion.