Images from the playoff's first round
Pittsburgh Penguins' Kris Letang warms up before Game 1 of the opening-round of NHL hockey playoff action against the Philadelphia Flyers, Wednesday, April 11, 2012, in Pittsburgh.Gene J. Puskar/The Associated Press
Hockey fans try and touch Vancouver Canucks goalie Roberto Luongo as he makes his way to the ice for a pre-game skate prior to first period NHL Stanley Cup playoff hockey action against the L.A. Kings at Rogers Arena in Vancouver, B.C. Wednesday, April, 11, 2012.JONATHAN HAYWARD/The Canadian Press
Pittsburgh Penguins' James Neal (18) knocks Philadelphia Flyers' Andreas Lilja (6) to the ice in the second period of Game 1 of their NHL Eastern Conference quarter-final hockey game in Pittsburgh, Pennsylvania, April 11, 2012.JASON COHN/Reuters
Pittsburgh Penguins' Tyler Kennedy, rear, celebrates his first-period goal with teammates Matt Cooke (24) and Jordan Staal (11) during Game 1 of an opening-round NHL hockey playoff series against the Philadelphia Flyers on Wednesday, April 11, 2012, in Pittsburgh.Gene J. Puskar/The Associated Press
Los Angeles Kings right wing Dustin Brown (23) battles Vancouver Canucks defenseman Dan Hamhuis (2) and Vancouver Canucks goalie Roberto Luongo (1) for position in front of the net during first period NHL Stanley Cup playoff hockey action at Rogers Arena in Vancouver, B.C. Wednesday, April, 11, 2012.JONATHAN HAYWARD/The Canadian Press
Nashville Predators goalie Pekka Rinne, center, of Finland, is congratulated by Ryan Suter (20) and Nick Spaling (13) after the Predators defeated the Detroit Red Wings 3-2 in Game 1 of a first-round NHL hockey playoff series on Wednesday, April 11, 2012, in Nashville, Tenn.Mark Humphrey/The Associated Press
Vancouver Canucks center Henrik Sedin (33) looks on as Vancouver Canucks right wing Alex Burrows, not shown, scores on Los Angeles Kings goalie Jonathan Quick (32) during first period NHL Stanley Cup playoff hockey action at Rogers Arena in Vancouver, B.C. Wednesday, April, 11, 2012.JONATHAN HAYWARD/The Canadian Press
Philadelphia Flyers Jakub Voracek (RIGHT) scores the winning goal against Pittsburgh Penguins goalie Marc-Andre Fleury (29) in front of Penguins Jordan Staal (11) in overtime of Game 1 of their NHL Eastern Conference quarter-final hockey game in Pittsburgh, Pennsylvania, April 11, 2012.JASON COHN/Reuters
Detroit Red Wings center Henrik Zetterberg (40), of Sweden, scores a goal against Nashville Predators goalie Pekka Rinne, of Finland, in the second period of Game 1 of a first-round NHL hockey playoff series on Wednesday, April 11, 2012, in Nashville, Tenn.Mark Humphrey/The Associated Press
Philadelphia Flyers' Danny Briere (48) scores against Pittsburgh Penguins goalie Marc-Andre Fleury (29) in the second period of Game 1 of their NHL Eastern Conference quarter-final hockey game in Pittsburgh, Pennsylvania, April 11, 2012.JASON COHN/Reuters
Pittsburgh Penguins' Pascal Dupuis (9) wrists his first-period goal past Philadelphia Flyers goalie IIya Bryzgalov during Game 1 of an opening-round NHL hockey playoff series Wednesday, April 11, 2012, in Pittsburgh.Gene J. Puskar/The Associated Press
Vancouver Canucks right wing Alex Burrows (14) celebrates his goal against the L.A. Kings with teammates Ryan Kesler, left to right, Christopher Tanev and Alexander Edler (23) during first period NHL Stanley Cup playoff hockey action at Rogers Arena in Vancouver, B.C. Wednesday, April, 11, 2012.JONATHAN HAYWARD/The Canadian Press