Around the world, athletes are throwing their support behind political and social causes, part of a wave of sports activism that has flourished in the years since former San Francisco 49ers quarterback Colin Kaepernick began taking a knee during games to protest police brutality against Black people.

Germany – led by Natalie Geisenberger, Johannes Ludwig, Tobias Arlt and Tobias Wendl – won the team relay. The country swept all four luge events.

Natalie Geisenberger broke a track record and won her third luge singles gold, Germany's seventh in a row - the longest active Winter Olympics streak.

Can Germany's Natalie Geisenberger and Anna Berreiter escape the bite of "The Dragon" in the women's singles final heats?

Natalie Geisenberger is the first three-time Olympic champion in women’s luge.

Mikaela Shiffrin will have to rebound quickly.

Germany's luger Natalie Geisenberger is on her way to a third straight women's singles gold after compatriot Julia Taubitz crashed out.

It has come up in conversations for four years.

Natalie Geisenberger has made it official: She’s heading to the Beijing Games and seeking a third consecutive Olympic women’s luge gold medal.