I saw the interview. He is still an active player, so I highly doubt he would admit to having recurring symptoms. He was likely advised before the interview not to say anything. I highly doubt after being out for over a year he doesn't have any lingering symptoms. Especially when he's pushing his body that hard in training and playing hockey, day in a day out.

I would also advise him to retire...I know he never would....but if you dont have your health, what do you have?