Story. I might be wrong, but NFL players are getting so big and so fast that one of these days there might have to be some fundamental rule changes. It may take 20 years to see it, but I bet something will have to be done. Kickoffs are inherently dangerous, so I could see them eliminated with a team getting the ball on the 25. And the tackler "cannot lead with his head" rule will have to be enforced.
Edit: I just saw that NINE players had season ending injuries after week one.