Wayne Gretzky applauded the use of centralized concussion spotters as part of the NHL's effort to better protect players. ''When I played - one of my kids asked me if I ever got a concussion - I can honestly tell you I don't even know,'' said Gretzky, who was representing the Edmonton Oilers as a partner and vice-chairman. The NHL this season began using concussion spotters located at a central location, watching on television, to help decide if a player should be pulled out of a game for a potential head injury. More...