In no way, shape or form should this be considered. But Canelo, very likely by thudding KO. Weight classes (not height classes) exist for a reason and should be respected.
Canelo is a lot bigger, but he's also prone to being outboxed when he's not fighting a washed up has been. He was outboxed by AARP member Golovkin FFS and Floyd Mayweather. Can Canelo's size overcome Bud's skills?