Chicago Blackhawks left wing Daniel Carcillo (13) is sandwiched between St. Louis Blues goalie Jake Allen (34) and Alex Pietrangelo (27) during the third period of an NHL hockey game Wednesday, Dec. 3, 2014, in Chicago. Former NHL players Carcillo and Nick Boynton are suing the league, alleging it failed to warn players about the long-term risk of brain damage from fighting. THE CANADIAN PRESS/AP-Charles Rex Arbogast