Team USA women's ice hockey team goaltender Jessie Vetter puts on her mask during practice at the Shayba Arena ahead of the 2014 Sochi Winter Olympics

Team USA goaltender Jessie Vetter puts on her mask during practice at the Shayba Arena ahead. (Mark Blinch/Reuters Photo) (MARK BLINCH / REUTERS / February 3, 2014)

When: Feb. 8-20.

The field: There is Canada and the U.S., and then the rest of the world. After the U.S. won the first women's hockey gold in Nagano in 1998, defeating Canada in the gold-medal game, Canada reeled off the next three. The rivalry is so intense that the teams brawled in two of their pre-Olympic tune-up games. If the teams don't meet for the gold, it will be a monumental upset. Those with the best chances to pull it off are Finland, Russia and Sweden. U.S. chances to medal: As good as it gets. It would take a couple of major upsets for the U.S. to leave empty-handed.

Little-known fact: Two-time Olympian Kelli Stack was a teammate of Blackhawks and Team USA star Patrick Kane during a tournament when the two were youngsters.