Detroit Red Wings players celebrate their 2-0 win over the Chicago Blackhawks after Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings goalie Jimmy Howard stops a Chicago Blackhawks center Jonathan Toews (19) shot during the second period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

From left to right, Chicago Blackhawks Michael Frolik (67), Bryan Bickell (29), Marian Hossa (81), Dave Bolland (36) and Patrick Sharp (10) watch from the bench during the second period in Game 4 of the Western Conference semifinals against the Detroit Red Wings in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. Detroit won 2-0. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Carlo Colaiacovo lies in the net after coming off its posts against the Chicago Blackhawks during the third period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Chicago Blackhawks center Jonathan Toews (19) crashes into Detroit Red Wings goalie Jimmy Howard (35) during the second period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings right wing Daniel Cleary, right, celebrates his empty-net goal against the Chicago Blackhawks with teammate Henrik Zetterberg (40), of Sweden, during the third period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. Detroit won 2-0. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Jakub Kindl (4), of the Czech Republic, defends against Chicago Blackhawks center Marcus Kruger (16), of Sweden, in front of Detroit Red Wings goalie Jimmy Howard (35) during the third period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings, foreground, skate past the Chicago Blackhawks bench after Daniel Cleary's empty-net goal during the third period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. Detroit won 2-0. (AP Photo/Paul Sancya)

Chicago Blackhawks center Michal Handzus (26), of the Czech Republic, checks Detroit Red Wings defenseman Brendan Smith (2) during the second period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Jakub Kindl (4), of the Czech Republic, celebrates his goal against the Chicago Blackhawks during the second period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Niklas Kronwall (55), of Sweden, celebrates with goalie Jimmy Howard (35) after defeating the Chicago Blackhawks 2-0 in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Chicago Blackhawks goalie Corey Crawford (50) stops a shot by Detroit Red Wings left wing Justin Abdelkader (8) during the second period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Niklas Kronwall (55), of Sweden, defends Chicago Blackhawks center Jonathan Toews (19) during the first period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs series in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Jakub Kindl (4), of the Czech Republic, defends against Chicago Blackhawks center Marcus Kruger (16), of Sweden, during the first period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Kyle Quincey (27) and Chicago Blackhawks left wing Brandon Saad (20) battle for the puck during the first period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings goalie Jimmy Howard (35) stops a shot by Chicago Blackhawks center Andrew Shaw (65) during the first period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Niklas Kronwall, center, of Sweden, checks Chicago Blackhawks center Jonathan Toews (19) away from goalie Jimmy Howard (35) during the first period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

From left to right, Chicago Blackhawks Michael Frolik (67), Bryan Bickell (29), Marian Hossa (81), Dave Bolland (36) and Patrick Sharp (10) watch from the bench during the second period in Game 4 of the Western Conference semifinals against the Detroit Red Wings in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. Detroit won 2-0. (AP Photo/Paul Sancya)

Detroit Red Wings, foreground, skate past the Chicago Blackhawks bench after Daniel Cleary's empty-net goal during the third period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. Detroit won 2-0. (AP Photo/Paul Sancya)

Detroit Red Wings right wing Daniel Cleary, right, celebrates his empty-net goal against the Chicago Blackhawks with teammate Henrik Zetterberg (40), of Sweden, during the third period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. Detroit won 2-0. (AP Photo/Paul Sancya)

Detroit Red Wings defenseman Niklas Kronwall (55), of Sweden, celebrates with goalie Jimmy Howard (35) after defeating the Chicago Blackhawks 2-0 in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings players celebrate their 2-0 win over the Chicago Blackhawks after Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

Detroit Red Wings goalie Jimmy Howard (35) stops a shot by Chicago Blackhawks center Jonathan Toews (19) during the second period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)

DETROIT, MI - MAY 23: Jimmy Howard #35 of the Detroit Red Wings acknowledges fans after being names the first star of the game after defeating the Chicago Blackhawks 2-0 in Game Four of the Western Conference Semifinals during the 2013 NHL Stanley Cup Playoffs at Joe Louis Arena on May 23, 2013 in Detroit, Michigan. Detroit leads the series 2-0. (Photo by Gregory Shamus/Getty Images)

DETROIT, MI - MAY 23: Jimmy Howard #35 of the Detroit Red Wings acknowledges fans after being names the first star of the game after defeating the Chicago Blackhawks 2-0 in Game Four of the Western Conference Semifinals during the 2013 NHL Stanley Cup Playoffs at Joe Louis Arena on May 23, 2013 in Detroit, Michigan. Detroit leads the series 2-0. (Photo by Gregory Shamus/Getty Images)

DETROIT, MI - MAY 23: Henrik Zetterberg #40 of the Detroit Red Wings congratulates teammates after a 2-0 win over the Chicago Blackhawks in Game Four of the Western Conference Semifinals during the 2013 NHL Stanley Cup Playoffs at Joe Louis Arena on May 23, 2013 in Detroit, Michigan. Detroit leads the series 3-1. (Photo by Gregory Shamus/Getty Images)

DETROIT, MI - MAY 23: Jimmy Howard #35 of the Detroit Red Wings celebrates a 2-0 win over the Chicago Blackhawks with teammates Niklas Kronwall #55 and Jonathan Ericsson #52 in Game Four of the Western Conference Semifinals during the 2013 NHL Stanley Cup Playoffs at Joe Louis Arena on May 23, 2013 in Detroit, Michigan. Detroit leads the series 3-1. (Photo by Gregory Shamus/Getty Images)

DETROIT, MI - MAY 23: Jimmy Howard #35 of the Detroit Red Wings celebrates a 2-0 win over the Chicago Blackhawks with teammates Niklas Kronwall #55 and Jonathan Ericsson #52 in Game Four of the Western Conference Semifinals during the 2013 NHL Stanley Cup Playoffs at Joe Louis Arena on May 23, 2013 in Detroit, Michigan. Detroit leads the series 3-1. (Photo by Gregory Shamus/Getty Images)

DETROIT, MI - MAY 23: Niklas Kronwall #55 of the Detroit Red Wings celebrates a 2-0 win over the Chicago Blackhawks in Game Four of the Western Conference Semifinals during the 2013 NHL Stanley Cup Playoffs at Joe Louis Arena on May 23, 2013 in Detroit, Michigan. Detroit leads the series 3-1. (Photo by Gregory Shamus/Getty Images)

Detroit Red Wings defenseman Jakub Kindl (4), of the Czech Republic, defends against Chicago Blackhawks center Marcus Kruger (16), of Sweden, in front of Detroit Red Wings goalie Jimmy Howard (35) during the third period in Game 4 of the Western Conference semifinals in the NHL hockey Stanley Cup playoffs in Detroit, Thursday, May 23, 2013. (AP Photo/Paul Sancya)