United States ousted from hockey worlds; Canada into semifinals

PRAGUE — The Czech Republic eliminated the United States at the ice hockey world championship with a 1-0 win Thursday to reach the semifinals.

Boston Bruins forward Pavel Zacha scored a power-play goal in the second period and Anaheim Ducks goaltender Lukas Dostal stopped 36 shots in front of the home fans at Prague Arena.

Zacha and Bruins teammate David Pastrnak were playing in just their second game at the tournament. They joined the Czech team after Boston was eliminated from the NHL playoffs by the Florida…