Philadelphia Flyers' Brayden Schenn, center, flies into Dallas Stars' Tim Thomas, left, after a collision with Jordie Benn during the second period of an NHL hockey game, Thursday, March 20, 2014, in Philadelphia. (AP Photo/Matt Slocum)
Philadelphia Flyers' Steve Mason, left, and Matt Read try to knock down a loose puck during the first period of an NHL hockey game against the Dallas Stars, Thursday, March 20, 2014, in Philadelphia. (AP Photo/Matt Slocum)
Philadelphia Flyers' Zac Rinaldo (36) tries get a shot past Dallas Stars goalie Tim Thomas (30) and Brenden Dillon (4) during the first period of an NHL hockey game, Thursday, March 20, 2014, in Philadelphia. (AP Photo/Matt Slocum)
Dallas Stars' Tyler Seguin (91) celebrates his first-period goal with teammates during an NHL hockey game against the Pittsburgh Penguins, in Pittsburgh on Tuesday, March 18, 2014. (AP Photo/Gene Puskar)
Pittsburgh Penguins' Chris Kunitz (14) celebrates his first-period goal with Sidney Crosby (87) during an NHL hockey game against the Dallas Stars in Pittsburgh, Tuesday, March 18, 2014. (AP Photo/Gene Puskar)
Pittsburgh Penguins' Sidney Crosby (87) backhands a shot past Dallas Stars goalie Kari Lehtonen (32) for a goal during the first period of an NHL hockey game in Pittsburgh, Tuesday, March 18, 2014. (AP Photo/Gene Puskar)