The most important Olympic ice hockey matchup in pool play takes place on Wednesday night between the two dominant powers of the women's game.
The unusual format of the Olympic tournament has put the United States and Canada in the same group before they are split up in the elimination round to set up a potential collision course for the gold-medal game.
Both teams cruised through their first two Olympic contests with an eye on Wednesday night, which will serve as a litmus test for the gold-medal hopes of the North American rivals.
If you want to know why the stakes are so high, Canada is the four-time defending Olympic champion, while the United States has won the last three IIHF Women's World Championships.