The USA beat Finland 3-1 in the opening game of the Sochi Olympic women's hockey tournament on Saturday. Hilary Knight scored after just 53 seconds, while Kelli Stack and Alex Carpenter scored second period goals for the Americans, who out-shot the Finns 43-15 in front of a crowd of 4,135 at the Shayba Arena.

Kelli Stack #16 of the United States and Hayley Wickenheiser #22 of Canada face off during the Ice Hockey Women's Gold Medal Game

Alex Carpenter #25, Hilary Knight #21 and Kelli Stack #16 of the United States celebrate after Carpenter scored a third-period goal against Shannon Szabados #1 of Canada during the Ice Hockey Women's Gold Medal Game

Kelli Stack #16 of United States faces off against Susanna Tapani #77 of Finland during the Women's Ice Hockey Preliminary Round Group A Game.

Kelli Stack #16 of United States celebrates with her teammate Hilary Knight #21 after scoring a goal in the second period against Noora Raty #41 of Finland during the Women's Ice Hockey Preliminary Round Group A Game.

#22, Amanda Kessel #28, Kelli Stack #16, Megan Bozek #9, Hilary Knight #21, Michelle Picard #23 and Kendall Coyne #26 of the United States huddle around the net before the Women's Ice Hockey Playoffs Semifinal game against Sweden

Kelli Stack of United States (C) takes a shot past team-mate goaltender Brianne McLaughlin during a training session at Shayba Arena.