Philadelphia Flyers captain Chris Pronger puts his hand over his eyes as he heads for the locker room after being struck in the face with a stick during the first period of an NHL hockey game with the Toronto Maple Leafs, Monday, Oct. 24, 2011, in Philadelphia. Concussions will be on the agenda Monday as the NHL's general managers kick off three days of meetings at the Boca Raton Resort & Club on Florida's Atlantic coast. THE CANADIAN PRESS/AP-Tom Mihalek