I was going to ask the exact same question last night - "Pretty much the worst thing that could happen", really with Aaron's neck injury THIS is the worst that could happen? o_O Did I miss him being ruled out for the year?
Hopefully the neck will be fine, he'll get his head right and he'll come back to play at full-speed, with full confidence during the season.
This injury is on the design of the practice? You do know they're playing football, fighting for positioning and the ball and that, yes, sometimes they have big unexpected collisions? Was Williams not following the line painted on the ground that he was supposed to follow?
Not sure if people here thought that AW would never take a big hit, or what. He did, he has a concussion, let's just pray that the neck is OK and that his confidence isn't shook.