Dallas Stars forward Mikael Granlund assisted on Finland’s opening goal before Team USA took control in the third period.

The scoreboard made it look like more of a rout than it was for the first two periods, when quality chances were at a premium.

The Tkachuk brothers dominated for Team USA, which scored three goals in the first three minutes of the third period Thursday and defeated Finland 6-1 in the 4 Nations Face-Off opener for both teams at the Bell Centre in Montreal.

Team USA star forward Matthew Tkachuk expressed his displeasure with Canadian fans booing during the "Star-Spangled Banner" ahead of their game against Finland on Thursday.

Matthew Tkachuk's goal in the third period give USA a 6-1 lead over Finland.

Brady and Matthew Tkachuk combine for four of the United States' six goals in a big win over Finland.

Brady and Matthew Tkachuk each scored twice, and the brothers had a handful of big hits to help the United States beat Finland 6-1 on Thursday night in

Brady and Matthew Tkachuk each scored twice, and the brothers had a handful of big hits to help the United States beat Finland 6-1 in each team's opening game at the 4 Nations Face-Off.

Canadian fans booed the Star-Spangled Banner before USA Finland at the NHL 4 Nations Face-Off. The American players had differing responses to it.

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.

Brady and Matthew Tkachuk each scored twice, and the brothers had a handful of big hits to help the United States beat Finland 6-1 to open the 4 Nations Face-Off, a physical showdown played with edge throughout.