Chris Pronger (concussion-like symptoms, close enough)
These are just players with concussions (or concussion-like symptoms) right now. And it's likely not a complete list, given that we don't know the details of some players with vague "upper-body injuries."
17 players total here, and we very well could have missed one or two. We're also not including guys like Marc Savard and Ian Laperriere, who are still under contract but have had their careers cut short and their lives are still affected by "post-concussion syndrome."
Concussions in hockey are down, right?