This image from Tuesday, March 8, 2011 shows Montreal Canadiens’ Max Pacioretty hitting his head on the glass partition between the benches on a hard check from Boston Bruins’ Zdeno Chara (33) during second period NHL hockey action in Montreal. A Quebec prosecutor wants police to investigate the hit by Chara that sent Pacioretty to the hospital with a fractured vertebra and severe concussion. (AP Photo/The Canadian Press, Paul Chiasson)