Just wanted to highlight Pete on the recent podcast said Jonathan Taylor (RB for the Colts) was training with Martinez in Tampa or wherever before Martinez enrolled. It is worth a listen but Taylor said the following (paraphrasing)
Martinez came to the facility weighing 235lbs, Taylor's first impression was this dude is big, he is a load and before they started agility drills he was questioning Martinez ability to do the drill effectively at his weight but then became wowed at his ability/movement skills at that size and thinks he can be one of the top backs taken in the draft. Said he works very hard and also trained with Gore/Gore Jr. and he lost 10lbs getting used to Miami humidity so he is now a rocked up 225, said the ACC is going to get to know him very very early.