Olympians in winter sports have been displaying their athletic excellence for years.

Lucas Pinheiro Braathen enters the Winter Olympics as a legitimate medal contender in Alpine skiing, with a chance to become the first Brazilian and South American to win a Winter Olympics medal after switching allegiance from Norway.

Here's what you need to know about the world's greatest women’s hockey player, including her age and decorated Olympic history.

Until Friday, the American women had never beaten Canada -- a perennial favorite that has medaled in every Winter Games since curling was added to the Olympics in 1998. The U.S. men beat the Canadians for the first time in the 2018 round-robin and again in the semifinals en route to their gold medal victory in Pyeongchang.

Erin Jackson was a member of the RollerGirls and competing in the bumping-and-bruising sport long before she won a gold medal in speedskating.

Guinea-Bissau is making its first appearance at the Winter Olympics, with 19-year-old skier Winston Tang set to compete in the slalom at the Milano-Cortina Games in Italy, which run until 22 February.

Team USA's quest for a first Olympic men's hockey gold since 1980 is underway against Latvia at the Milano Santagiulia Ice Hockey Arena in Milan, with the B/R staff on hand to deliver a live analysis and reaction.