On paper this is a competitive fight however I expect Chevalier to have a breakout performance for a few reasons.
Bryan Chevalier has put a few good results together however if he wins this fight it would show that he’s someone to look out for in the featherweight division. He’s shown power, is big for the weight and has also been relatively active.
Carlos Zambrano hasn’t fought for over two years and the last fight he had was a stoppage loss so he’ll be rusty going into this fight. He’s also past his prime and old for a fighter so him fighting someone that’s bigger than him with more power isn’t a great idea.
I think Bryan Chevalier will win by knockout due to being much more active in recent years and also being the younger bigger fighter with more power.