This is pretty cool. I can see other sports games doing this soon. Why ignore what is a growing customer base? 

Concussions in football games are taken more seriously than ever before. And going forward, that will hold true in the next edition of the "Madden" football video game franchise when concussed players won't be allowed to return to the field in the game they are injured.

Great move from EA and the NFL here. Concussions are no joke and I applaud them for this.