As members of the Colorado Avalanche, back, celebrate a goal by Ryan O'Reilly, Chicago Blackhawks right wing Michael Frolik (67), of the Czech Republic, skates back to the bench in the second period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Chicago Blackhawks v Colorado Avalanche

Chicago Blackhawks right wing Patrick Kane, left, works the puck behind the net as Colorado Avalanche defenseman Greg Zanon covers in the second period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Chicago Blackhawks left wing Brandon Saad, left, tries to stop as Colorado Avalanche defenseman Shane O'Brien picks up a loose puck in the second period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

As Colorado Avalanche defenseman Ryan O'Byrne, left, looks on, Chicago Blackhawks center Jonathan Toews, second from left, is congratulated after scoring a goal by teammates Brandon Saad, third from left, and Duncan Keith in the first period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Colorado Avalanche left wing Gabriel Landeskog, left, of Sweden, directs a shot at Chicago Blackhawks goalie Corey Crawford, right, as defenseman Duncan Keith looks on in the first period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Colorado Avalanche center Matt Duchene, center, celebrates after scoring a goal with defenseman Shane O'Brien, left, and right wing PA Parenteau against the Chicago Blackhawks in the second period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Chicago Blackhawks goalie Corey Crawford, right, reacts after letting in a goal by Colorado Avalanche center Ryan O'Reilly (not shown) as Avalanche center Paul Stastny, left, checks the net in the second period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Chicago Blackhawks right wing Viktor Stalberg, right, of Sweden, clears the puck from along the boards as Colorado Avalanche right wing David Jones covers in the first period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Colorado Avalanche center Ryan O'Reilly (90) is congratulated by teammates after scoring a goal against the Chicago Blackhawks in the second period of an NHL hockey game in Denver, Friday, March 8, 2013. Avalanche left wing Gabriel Landeskog, right, of Sweden, heads back to the ice. (AP Photo/David Zalubowski)

Chicago Blackhawks defenseman Nick Leddy, left, is called for a holding penalty as he tries tostop Colorado Avalanche right wing Chuck Kobasew in the first period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Colorado Avalanche center Paul Stastny, right, reaches out for a loose puck as Chicago Blackhawks defenseman Johnny Oduya covers in the first period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Colorado Avalanche goalie Semyon Varlamov, of Russia, drops on the ice to cover the puck after stopping a shot from the Chicago Blackhawks in the second period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)

Chicago Blackhawks defenseman Duncan Keith, left, checks Colorado Avalanche right wing PA Parenteau off the puck in the first period of an NHL hockey game in Denver, Friday, March 8, 2013. (AP Photo/David Zalubowski)