US, Canadian hockey stars get into numerous fights in opening seconds of 4 Nations rivalry after anthem boos [Video]

Three fights broke out in the first nine seconds of a 4 Nations Face-Off game between the U.S. and Canada Saturday.

At the opening puck drop, Matthew Tkachuk of the U.S. and Canada’s Brandon Hagel didn’t wait to drop the gloves.

Just two seconds later, Matthew’s brother, Brady, went toe-to-toe with Sam Bennett, who is NHL teammates with Matthew with the reigning Stanley Cup champion Florida Panthers.

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That wasn’t all. After an opening rush into the Canadian zone, a scrap involving just about everyone broke out, and J.T. Miller and Colton Parayko got into a fight of their own.

The penalty boxes filled up, but cooler heads eventually prevailed.

The game was being played in Montreal, so the tensions in the crowd were already high. The “Star-Spangled Banner” was booed loudly despite pleas from the public-address announcer to “respect” both nations’ anthems.

Even NHL exec Bill Daly called it an “unfortunate situation”and hoped …