April 15, 2012; Philadelphia, PA, USA; Philadelphia Flyers center Claude Giroux (28) and Pittsburgh Penguins center Sidney Crosby (87) fight during the first period in game three of the 2012 Eastern Conference quarterfinals at Wells Fargo Arena.
Referees try to break up a fight between members of the Chicago Blackhawks and the Phoenix Coyotes following a hit on Blackhawk Marian Hossa by Raffi Torres in Game 3.
The San Jose Sharks' Tommy Wingels holds on to the St. Louis Blues' Chris Stewart in Game 5.
Pile it on
The New York Rangers fight with the Ottawa Senators in Game 2 at Madison Square Garden.
All tied up
Chicago Blackhawk Brandon Bollig and Phoenix Coyote Paul Bissonnette duke it out in Game 4.
Ottawa Senator Chris Neil fights New York Ranger Brandon Prust in Game 6.
The Florida Panthers' Scottie Upshall spars with the New Jersey Devils' Steve Bernier during Game 3.
Philadelphia Flyers center Claude Giroux and Pittsburgh Penguins center Sidney Crosby fight during the first period.
Don't lose your head
Pittsburgh Penguins defenseman Kris Letang dukes it out with Philadelphia Flyers defenseman Kimmo Timonen.
Vancouver Canucks right wing Alex Burrows (14) pins Los Angeles Kings center Anze Kopitar of Yugoslavia to end a fight during the second period of Game 3 in a first-round NHL Stanley Cup playoff series in Los Angeles, Sunday, April 15, 2012.
Time to pay
Detroit Red Wing Todd Bertuzzi fights with Nashville Predator Shea Weber in Game 2. The move was in response to a hit to the head delivered by Weber to the Red Wings' Henrik Zetterberg in Game 1.
Brayden Schenn of the Philadelphia Flyers and Sidney Crosby of the Pittsburgh Penguins battle in the third period.
Kris Letang of the Pittsburgh Penguins is escorted off the ice by referee Francois St. Laurent.
Linesman Scott Driscoll attempts to break up a fight between Claude Giroux of the Philadelphia Flyers and Sidney Crosby of the Pittsburgh Penguins.
NHLI via Getty ImagesLen Redkoles
Sidney Crosby of the Pittsburgh Penguins spars with Claude Giroux of the Philadelphia Flyers.
Getty ImagesBruce Bennett
Kris Letang of the Pittsburgh Penguins pulls the jersey of Kimmo Timonen of the Philadelphia Flyers over his head in the first period.
Getty ImagesBruce Bennett
Pittsburgh Penguin Craig Adams winds up against Philadelphia Flyer Scott Hartnell.
Philadelphia Flyers center Claude Giroux and Pittsburgh Penguins center Sidney Crosby fight.
Take it on the chin
Philadelphia Flyers Claude Giroux holds on to Pittsburgh Penguins Sidney Crosby as Kimmo Timonen lands a punch to Crosby's jaw.
Want a piece of this?
Philadelphia Flyer Brayden Schenn and Pittsburgh Penguins Sidney Crosby trade barbs in Game 3.
Sticks and gloves litter the ice following a fight between the Pittsburgh Penguins and the Philadelphia Flyers.
How do you really feel?
A Flyers fan holds up a t-shirt behind Pittsburgh Penguin Sidney Crosby while he sits in the penalty box.