A photographic look at Saturday's opening round playoff action in the National Hockey League
Washington Capitals centre Nicklas Backstrom (19) celebrates his game-winning goal against the Boston Bruins during the second overtime period of Game 2 of an NHL hockey Stanley Cup first-round playoff series in Boston, Saturday, April 14, 2012. The Capitals won 2-1, tying the series at 1-1. (AP Photo/Charles Krupa)Charles Krupa/The Associated Press
New York Rangers' Brandon Dubinsky is ejected from the game for fighting against the Ottawa Senators during the first period of Game 2 of their NHL Eastern Conference quarter-final playoff hockey game at Madison Square Garden in New York April 14, 2012. The Senators won 3-2 in overtime to even their series at 1-1. REUTERS/Ray StubblebineRay Stubblebine/Reuters
St. Louis Blues centre Vladimir Sobotka (L) ends up upside down in the San Jose Sharks net after falling in as Scott Nichol looks on during their NHL Western Conference quarter-final playoff hockey game in St. Louis, Missouri. April 14, 2012. The Blues won 3-0. REUTERS/Sarah ConradSarah Conrad/Reuters
Phoenix Coyotes' Oliver Ekman-Larsson (23), of Sweden, collides with Chicago Blackhawks' Corey Crawford (50) during the first period in Game 2 of an NHL hockey Stanley Cup first-round playoff series on Saturday, April 14, 2012, in Glendale, Ariz.(AP Photo/Ross D. Franklin)Ross D. Franklin/The Associated Press
Boston Bruins defenceman Dennis Seidenberg (44) gets a stick to the face from Washington Capitals left wing Alex Ovechkin (8) during the second period of Game 2 of an NHL hockey Stanley Cup first-round playoff series in Boston, Saturday, April 14, 2012. AP Photo/Charles Krupa)Charles Krupa/The Associated Press
New York Rangers' Brandon Prust (8) and Ottawa Senators' Erik Karlsson (65) collide during the second period of Game 2 of a first-round NHL hockey playoff series Saturday, April 14, 2012, in New York. (AP Photo/Frank Franklin II)Frank Franklin II/The Associated Press
San Jose Sharks goalie Antti Niemi (R) stops a shot from St. Louis Blues center Andy McDonald during their NHL Western Conference quarter-final playoff hockey game in St. Louis, Missouri. April 14, 2012. REUTERS/Sarah ConradSarah Conrad/Reuters
Phoenix Coyotes' Antoine Vermette, right, celebrates his goal as Chicago Blackhawks' Niklas Hjalmarsson (4), of Sweden, looks on during the first period in Game 2 of an NHL hockey Stanley Cup first-round playoff series on Saturday, April 14, 2012, in Glendale, Ariz.(AP Photo/Ross D. Franklin)Ross D. Franklin/The Associated Press
Boston Bruins goalie Tim Thomas, right, watches as defenseman Zdeno Chara knocks the puck away against the Washington Capitals during the second period of Game 2 of an NHL hockey Stanley Cup first-round playoff series in Boston, Saturday, April 14, 2012. AP Photo/Charles Krupa)Charles Krupa/The Associated Press
Ottawa Senators' Chris Neil (front L) celebrates his game winning goal with teammates Colin Greening (14) and Zack Smith in front of New York Rangers' Brian Boyle (back L) and Dan Girardi (R) during overtime of Game 2 of their NHL Eastern Conference quarter-final playoff hockey game at Madison Square Garden in New York April 14, 2012. REUTERS/Ray StubblebineRay Stubblebine/Reuters
San Jose Sharks' Martin Havlat, of the Czech Republic, cannot reach the puck as St. Louis Blues goalie Brian Elliott, left, makes a stop during the third period in Game 2 of an NHL Stanley Cup first-round hockey playoff series Saturday, April 14, 2012, in St. Louis. The Blues won 3-0. (AP Photo/Jeff Roberson)Jeff Roberson/The Associated Press
Phoenix Coyotes' Martin Hanzal, left, of the Czech Republic, battles Chicago Blackhawks' Bryan Bickell (29) as linesman Shane Heyer tries to break up the scuffle while Coyotes' Shane Doan (19) and Blackhawks' Andrew Shaw, right, push one another during the first period in Game 1 of an NHL hockey Stanley Cup first-round playoff series Thursday, April 12, 2012, in Glendale, Ariz. The Coyotes defeated the Blackhawks 3-2.(AP Photo/Ross D. Franklin)Ross D. Franklin/The Associated Press