It was Tkachuk who ignited the fireworks at the start of the United States’ 3-1 win against Canada on Saturday in Montreal, fighting Canada forward Brandon Hagel at puck drop. This after he scored twice in a 6-1 win against Finland in the tournament opener for the U.S.

Matthew Tkachuk left the United States’ 4 Nations Face-Off victory over Canada on Saturday night because of what coach Mike Sullivan called a lower-body injury. There were few details beyond that after the 3-1 victory.

Matthew Tkachuk said that he wouldn't "want to miss" the finale vs. Canada and that he expects brother Brady to "be at his absolute best."