Those concussions are nothing to play with. I think the question is legitimately asked whether Rambo should continue to play.
At any rate, the story on the AJC is informative enough that I wanted to link it, so that we have it on the Blog.
A separate question is whether the AJC is lifting information from Rivals without attribution. I don't have a Rivals subscription, so I can't check for myself, but the title of the AJC article sounds like the snippet Rivals had on their site yesterday.