Lindsey Vonn, the 28-year-old American skier and Olympic gold medalist, was airlifted from the slope at the World Championships in Austria this morning after a hideous, sudden crash in the Super-G. Her injuries are still unclear, though the AP reports that it appeared to be her right knee. If fellow skier Tina Maze's reaction is of any indication, it did not look any better on the ground in Schladming.

Vonn has been transported to a nearby hospital, a move the U.S. Ski Team says is "standard protocol." We'll update when we know more.

UPDATE: Yahoo Sports reports that Vonn has torn the ACL and MCL in her right knee.

H/T The Big Lead, Boston Globe Sports.