Jonathon Brooks' NFL career got off to a rocky start. The Panthers running back is already making an impression during training camp, and the biggest difference is simple: He's healthy. Read More on NFLMore sports: One Cardinals Player Making an Impression at Training CampAfter everything he's dealt with, just getting through a full offseason was important. He's trying to take over the backfield. For a player who has spent so much time rehabbing, seeing him move confidently again is a big step.