Injury Report vs. actual concussion count

As you can see, the numbers look slightly better from 2012 to 2013. Still the numbers of concussions that go undiagnosed are far too great and dangerous for the players.


http://www.pbs.org/wgbh/pages/frontline/sports/concussion-watch/what-weve-learned-from-two-years-of-tracking-nfl-concussions/