As the “The Star-Spangled Banner” played, many in the Bell Centre crowd booed loudly, despite a pre-anthem plea to show respect.

In the end, it was less of an escape than Team USA putting its foot down in a 6-1 victory to open its 4 Nations Face-Off, boosted by a dominant third period from both Tkachuk brothers, Brady and Matthew, joined together on a line by coach Mike Sullivan.

Brady and Matthew Tkachuk each score twice and deliver a handful of big hits to help the United States to a 6-1 victory in its tournament opener, a physical showdown played with edge throughout.