Tkachuk, who was one of three fights in the opening nine seconds of play, is dealing with an injury that could potentially be serious after missing most of the 3rd period.
Right now, he's being evaluated by our doctors. That's all I can offer. We'll make decisions that we think is best for Matthew and we think is best for our team. Right now, I don't have a lot of information to go on, so it's hard for me to give you more.
Tkachuk has two goals so far in the 4 Nations Faceoff for the Americans; his potential absence would be a devastating blow.
Brady Tkachuk also fought in the opening seconds of play vs. Canada