Chicago Blackhawks center Andrew Shaw, left, is bent back by Vancouver Canucks defenseman Andrew Alberts (41) and David Booth as a referee tries to break them up during the second period of an NHL ... more 

Chicago Blackhawks center Andrew Shaw, left, is bent back by Vancouver Canucks defenseman Andrew Alberts (41) and David Booth as a referee tries to break them up during the second period of an NHL hockey game in Chicago, Wednesday, March 21, 2012. (AP Photo/Charles Rex Arbogast) less