The United States, which went undefeated in winning last year's world junior hockey championship, will look to improve to 2-0 Saturday at this year's tournament in Ottawa. But standing in the way is a Latvia team that pulled off a massive upset against host Canada on Friday.

The United States improved to 2-0 on the tournament after beating an inspired Latvian team 5-1 on Saturday. USA will look to stay hot with a meeting against the 1-1 Finnish team on Sunday, while Latvia will take on the Germans on Monday.

Team USA, the tournament's defending champion, defeated upstart Latvia 5-1 on Saturday in the world junior hockey championship in Ottawa, Ontario, allowing the Americans to improve to 2-0 in Group A play.

Latvia defeated Canada at the World Junior Championship yesterday in a stunning turn of events. Canada didn't get blown out of the water, but the team they lost to makes it feel like they were. Matthew Schaefer had been injured after playing just 2:08.