NHL. USA national anthem booed in Montreal before Four Nations hockey game NHL ... with multiple fights erupting in the opening seconds. You won't believe the intensity of these brawls.

and that was followed by three fights in the span of nine seconds to open the game. Canadian hockey fans booing "The Star-Spangled Banner" has become a trend of late. The Canadians in attendance ...

Three fights broke out in the first nine seconds ... went toe-to-toe with Sam Bennett, who is NHL teammates with Matthew with the reigning Stanley Cup champion Florida Panthers.