Rios is a methodical pressure fighter. He puts punches together but needs to time to accumulate the damage. He was effective to the body and one of his best punches was counter right over a lazy jab in the mid rounds. His style is all based about being in the face on an opponent and countering them in the middle of an exchange. Rosario is a boxer-puncher who had decent movement and would use the ring when needed. His was a true puncher where sometimes he would throw what would look to be an ordinary punch but the impact and reaction from the opponent shows that its something else. Rios isn't going to do well here. Rosario's power would be on display. When Chapo finds that he can land and land often he would he start timing Rios off his jab and takes out Rios in the mid rounds.