Pittsburgh Penguins star Sidney Crosby tosses a puck during hockey practice in Sunrise, Fla., on Jan. 13, 2012. Two years after Crosby’s dramatic overtime goal on the final day of the Vancouver Olympics, Sid the Kid has become Sid the Ghost, a recurrence of concussion-like symptoms turning the 24-year-old face of hockey into a cautionary tale on inherent dangers of the game. (AP Photo/Alan Diaz, File)
Read the article: NHL: Penguins say Sidney Crosby dealing with neck injury, not just concussion
