Kings general manager Dean Lombardi said the injury was not a head injury but will sideline Doughty for 7-10 days.
On the game's first shift, Doughty was hit hard by Flyers rookie forward Zac Rinaldo while skating through the Philadelphia zone. The hit occurred just 24 seconds into the game, and precipitated a fight between Rinaldo and the Kings' Dustin Penner.
Doughty left the ice under his own power, but played just one more shift totaling 1:10 the remainder of the period. He left the bench during the period.
He entered the game fourth in the League in average ice time per game at 27:33 in three games.
It's cool when you think about how many great American players have played the game and the two players that were at that 18-game point streak and what they've done in their careers. It's pretty cool right now, but it was kind of overshadowed by the loss.
— Blackhawks forward Patrick Kane after breaking the record for longest point streak by an American-born player with a goal and an assist in a 3-2 overtime loss against the Kings