Claude Giroux and Sidney Crosby exchange punches during a first period scrum on Sunday. The Flyers took a 3-0 series lead over their rival Penguins with a 8-4 victory. (Len Redkoles/NHLI via Getty Images)
VIDEO: Watch highlights of Game 3 between Flyers and PensDATER: Penguins lost face as an organization in physical lossMUIR: Cooke, Weiss, Klein earn Sunday’s three stars

Claude Giroux and Sidney Crosby exchange punches during a first period scrum on Sunday. The Flyers took a 3-0 series lead over their rival Penguins with a 8-4 victory. (Len Redkoles/NHLI via Getty Images)

VIDEO: Watch highlights of Game 3 between Flyers and Pens
DATER: Penguins lost face as an organization in physical loss
MUIR: Cooke, Weiss, Klein earn Sunday’s three stars

Sidney Crosby and Mikael Samuelsson fight for a loose puck during Game 6 of the 2008 Stanley Cup Finals. Crosby is just one of 22 NHL players currently sidelined by head injury, writes SI.com’s Stu Hackel. (David E. Klutho/SI)
HACKEL: The NHL’s worst nightmare coming true as head injuries increaseVIDEO: Explaining Crosby’s symptoms | How Pens should manage CrosbyPHOTO GALLERY: Notable hockey careers cut short by concussion

Sidney Crosby and Mikael Samuelsson fight for a loose puck during Game 6 of the 2008 Stanley Cup Finals. Crosby is just one of 22 NHL players currently sidelined by head injury, writes SI.com’s Stu Hackel. (David E. Klutho/SI)

HACKEL: The NHL’s worst nightmare coming true as head injuries increase
VIDEO: Explaining Crosby’s symptoms | How Pens should manage Crosby
PHOTO GALLERY: Notable hockey careers cut short by concussion