I think Antillon is a real talent and have been high on him for a while. The man has a sensational body attack. Rewatched Acosta bout last week and Acosta had him zeroed for that uppercut from round 1. But as much as I hate it, mass for mass and between the two frontal type fighters I think Rios takes this one. Rios cannot spell reverse gear and Antillon will have to be the boxer. I think he gets tagged after investing in the body, stands his ground and a wide open free swinging scrap ensues. This fight is a must see while it lasts but unless Antillon has found a mobile high guard backfoot I have to go with Rios on mass and attrition. Hope to be wrong.