Macklin Celebrini scored Canada’s first goal in the return of the NHL to the Olympics and Jordan Binnington stopped all 26 shots he faced in a 5-0 defeat of Czechia that showed the tournament favorite is already a well-oiled machine.

Tage Thompson scored at 2:02 of overtime to the give the United States a 1-0 victory over Switzerland on Sunday for its second world hockey championship and first since 1933.