Washington Capitals' Mathieu Perreault , left, and Montreal Canadiens' Raphael Diaz collide during first period NHL hockey action, Saturday, Feb. 4, 2012 in Montreal. (AP Photo/The Canadian Press, Paul Chiasson)

Photo by: Paul Chiasson

Washington Capitals' Mathieu Perreault , left, and Montreal Canadiens' Raphael Diaz collide during first period NHL hockey action, Saturday, Feb. 4, 2012 in Montreal. (AP Photo/The Canadian Press, Paul Chiasson)