You have to understand there is a injury rating to each player to so that takes affect of how often that player is injured. It has to react hand in hand with the overall Injury slider. So if you have a player with a 58 injury rating like romo or RG3, they get hurt more often than not because of their injury rating. Players like Jason Witten who have a 90 injury almost never get hurt, Regardless of where you have the injury slider at. That's why I think the injury slider dictates the severity of injures, not amount or occurrence.