Thankfully, Sweeney, who is 24 and a member of the National Guard, walked away from the accident on her own and was only "banged up", according to an on-site doctor. She was taken to the hospital for evaluation.
Luge involves one person on a sled hurtling down a track and Sweeney was on her final run of the day.
Though this is Sweeney's first Olympic appearance, she is no stranger to the competition.
"I don't think Curve 9 is unsafe, but I am anxious because it's technical", Mazdzer said in a video for NBC, explaining how it can throw a luger off by tenths of a second, which can be the difference in a medal.
"It's pretty brutal, but I wanted to get the last word".
Bernardeschi, Higuain put Juventus top amid VAR fiasco
Former Fiorentina prodigy Federico Bernardeschi eventually found a way through, though, before Gonzalo Higuaín wrapped things up late on.
Emily Sweeney said she was "fine" after the crash.
"I know I have a lot of support and I'm sorry that's how it ended". She was taken to a hospital as a precautionary measure. Crashes, however, have not come as often as they did in the 2006 and 2010 Games, both of which left athletes openly complaining about track safety. After the crash, officials stopped competition until she was properly evaluated.
Later in the final run, Britcher lost control at the start and collided with some walls - but got down the track without crashing or serious injury.
Watch Sweeney's crash in the videos below, but please note that some viewers may find the footage distressing.
The track was then reopened, with German star Natalie Geisenberger claiming the gold medal for the event.