Hometown: Laax, Switzerland
Olympic Outlook: Sina hasn't always had the strongest contest showings but she was one of the first women to land a frontside 1080 during a park shoot last year. She's tried 1080s during her contest run at the Tignes X Games but couldn't land. If she puts one in her run at Sochi it will not only make history for women's snowboarding but also could get her gold.
Potential Downfall: Throwing the 1080 is all or nothing. Landing will mean Sina wins big, falling means her medal hopes are over.