Who wins? Ray has a chance here he's still standing in the late rounds, but more than likely he wouldn't be. Rosario TKO 6. Chapo at 135 was a more explosive and dynamic puncher than Arguello at 135. Hence, why I think he gets Ray out sooner.
Both will come out banging out...and Rosario wins by KO before round 6...if Mancini box a bit and try to be cute I can see it going later...but the outcome will be the same...
