DETROIT, MI - APRIL 02: Niklas Kronwall #55 of the Detroit Red Wings lays a second period hit on David Pastrnak #88 of the Boston Bruins at Joe Louis Arena on April 2, 2015 in Detroit, Michigan. (Photo by Gregory Shamus/Getty Images)
DETROIT, MI - APRIL 02: Niklas Kronwall #55 of the Detroit Red Wings lays a second period hit on David Pastrnak #88 of the Boston Bruins at Joe Louis Arena on April 2, 2015 in Detroit, Michigan. (Photo by Gregory Shamus/Getty Images)