The puck bounces towards the net for a goal as Team Finland forward Erik Haula (10) collides with Team USA goaltender Jack Campbell as defenceman Justin Faulk (25) looks on in third period World Junior Hockey action on Sunday night. ((Frank Gunn/Canadian Press) )

Nick Bjugstad scored with 1:52 left in overtime and Team USA opened defence of its world junior hockey championship title with a 3-2 win over Finland on Sunday night.

Bjugstad snapped a wrist shot that got by goalie Joni Ortio, who stopped 27 of 30 shots.

Goalie Jack Campbell stopped 32 of 34 shots. Justin Faulk and Jason Zucker also scored for the U.S. while Joonas Nattinen and Iiro Pakarinen — who tied the game with 7:01 left in the third — tallied for Finland.

Team USA took a 1-0 lead with a power-play goal as Faulk's slap shot from the point sailed over Ortio's shoulder at 18:54 of the first period.

Finland broke through at 13:50 of the second after Campbell misplayed the puck behind his net. Toni Rajala chipped the puck from Campbell, and then sent a pass to Nattinen who evened the game at 1-1.

Just a minute, 18 seconds later, Zucker gave the US a 2-1 lead. Chris Brown's forecheck caused a turnover deep in the Finland zone.

Zucker pounced on the loose puck and beat Ortio on the short side.

Switzerland 4, Germany 3

Nino Niederreiter scored once and set up another during a four-goal, first-period blitz that carried Switzerland past Germany 4-3 Sunday in the opening game at the world junior hockey championship.

The New York Islanders first-round pick, fifth overall in 2010, scored 9:21 into the game to make it 2-0 and then assisted on Romain Loeffel's goal 27 seconds later.

Luca Camperchiolo scored at 13:25 to make it 4-0 and chase Philipp Grubauer from the German net.

Niklas Treutle stopped all 12 shots he faced the rest of the way, but a German rally fell short.

Matthias Plachta scored and assisted on Marcel Noebels' goal, while Corey Mapes made it a one-goal game at 15:19 of the third period.

Benjamin Conz shut the door from there, and finished with 32 saves.

Inti Pestoni opened the scoring for Switzerland 4:31 into play.

Sweden 7, Norway 1

Patrick Cehlin scored twice and had an assist as Sweden routed Norway in its tournament opener in Niagara Falls, N.Y. 

Sebastian Wannstrom, Carl Klingberg, John Klingberg, Gabriel Landeskog, and Tim Erixon also scored for Sweden, which outshout Norway 46-11.

Eirik Borresen had Norway's lone goal.