In addition to the reoccurrence of the concussion symptoms, wasn't a big part of DL stint last year due to the neck issues flaring up again? It seems like his body is really giving him quite a few signs to back off. I feel like he is an injury away from having life time health issues, if he has not already passed that point. It has to be incredibly tough to walk away from something you really love and the only thing you have ever really known as a career (as evidenced by Jerry Kill this week). He is one of my sentimental favorites, I can understand why he still wants to play (and imagine he would love to return home so to speak), but I don't think the team has greater needs and I think it would be in his best interest to contemplate stepping away from the game (as hard as that must be).