Watch as Sidney Crosby is nudged by John Carlson and takes a head first dive into the boards.

Sidney Crosby would be slow to get up after Luke Witkowski hit him from behind and into the boards.
Sidney Crosby gets knocked headfirst into the boards by John Carlson Video belongs to NBC Sports.
Sidney Crosby got upset that there was a slash on Chris Kunitz so naturally he threw his water bottle on the ice during play. Moments later, Phil Kessel scored to .