Pittsburgh Penguins' Sidney Crosby (87) is slowed down on a rush by St. Louis Blues' Magnus Paajarvi (56) in first period of an NHL hockey game in Pittsburgh, Sunday, March 23, 2014. (AP Photo/Gene J. Puskar)
St. Louis Blues' Barret Jackman (5) collides with Pittsburgh Penguins' Sidney Crosby, right, in the second period of an NHL hockey game in Pittsburgh, Sunday, March 23, 2014. (AP Photo/Gene J. Puskar)
St. Louis Blues goalie Brian Elliott (1) stops a shot by Pittsburgh Penguins' Evgeni Malkin (71) in the second period of an NHL hockey game in Pittsburgh, Sunday, March 23, 2014. (AP Photo/Gene J. Puskar)
St. Louis Blues' Jaden Schwartz (9) scores a goal past Philadelphia Flyers' Steve Mason (35) during the first period of an NHL hockey game, Saturday, March 22, 2014, in Philadelphia. (AP Photo/Matt Slocum)
Philadelphia Flyers' Brayden Schenn, right, scores a goal against St. Louis Blues' Ryan Miller during the second period of an NHL hockey game, Saturday, March 22, 2014, in Philadelphia. (AP Photo/Matt Slocum)
Philadelphia Flyers' Brayden Schenn, left, scores a goal against St. Louis Blues' Ryan Miller during the second period of an NHL hockey game, Saturday, March 22, 2014, in Philadelphia. (AP Photo/Matt Slocum)
Philadelphia Flyers' Scott Hartnell, left, reacts after scoring a goal during the second period of an NHL hockey game against the St. Louis Blues, Saturday, March 22, 2014, in Philadelphia. (AP Photo/Matt Slocum)
St. Louis Blues' Maxim Lapierre (40), and Chicago Blackhawks' Nick Leddy (8), run into the glass during the first period of an NHL hockey game in Chicago, Wednesday, March, 19, 2014. (AP Photo/Paul Beaty)