I think Casamayor gives Rosario issues stylistically - similar in a way to how Davis Jr. did - but gets clipped and stopped. Rosario was the more reliable fighter IMO.
Rosario by KO 8-10 even fight, with Rosario busting Casamayor up down the stretch before the KO. Casamayor doesn’t have the legs to keep Rosario from landing early and often softening up for later.
Agreed with previous posts. Casamayor would provide a lot of problems for Rosario but with 12 rounds to use Chapo gets the job done at some point.
I'm not even sure Casa gives Rosario all that many issues, to be perfectly honest. You gotta remember that Howard Davis was extremely tall and rangy for a lightweight, and was a great deal faster than Casa. I think Rosario would have destroyed Casamayor inside of 6, honestly.
