via Bo Hamby of LA Kings Insider,

Doughty, on the hit he took from Matthew Tkachuk in the first period:
He’s a pretty dirty player, that kid. To be a rookie and play like that is a little surprising. I don’t know exactly what happened because I got hit in the head, but I thought he elbowed me. I can’t tell you for sure, so I’m not going to really say if I think anything should happen, but whatever it was, it hurt pretty bad, and it’s going to hurt for a little bit.

Doughty, on whether Tkachuk’s hit was the result of anything earlier in that shift:
It’s just that every game I’ve played against him basically, me and him get after it a little bit. Obviously, partially that’s my fault, too, because I like to get under peoples’ skin, too. He’s a young guy in the league, and I don’t think he necessarily meant to hurt me or anything like that, but he did.

Watch the elbow from Tkachuk below...

added 11:00am,