How a Russian luger offered Chris Mazdzer a hand

After winning the silver in the men's single luge competition, American Chris Mazdzer shared a touching story about how a fellow Russian luger offered him a hand before the Games -- or more accurately, his sled.

How to sound like an expert in obscure Winter Olympics sports

Curling? Luge? Biathlon? We don't blame you if you don't know much about these sports. But the Winter Olympics are here. And to be the Winter Olympics expert in the break room at work, you've got to do your homework. Here's everything you need to know about some of the Winter Olympics' lesser-known sports.