Scary, scary stuff.
http://sports.yahoo.com/soccer/news?...an-concussions
Basically, he suffered a concussion in 2008 (accidentally punched in the head by keeper on a 50:50 ball). The doctor said he wasn't concussed because he knew him name and could count backwards, sent him back in. Was suffering for months, NER claimed it was depression from the club rejecting a transfer offer for him. 19 months later (!) he finally saw a proper neurosurgeon and was properly diagnosed.
MLS, and all sports leagues, treat concussions with greater care now in 2011 than they did in 2008, but still, who knows how many others have suffered from brain trauma needlessly.