Trainer Derrick James On Jeison Rosario: “He’s A Devastating, Violent Puncher”

By: Hans Themistode
Jeison Rosario didn't seem to be anything special. 
He began his career like any typical prospect. Meaning he ran right through lower level opposition. In his first official step up contest however, he was brutally knocked out by fringe contender Nathaniel Gallimore. Two fights later, Rosario would have to settle for a split draw against Mark Hernandez, further solidifying his spot on the bottom of the totem pole. Yet with six straight wins under his belt, trainer D