U.S. alpine skier Nina O'Brien injured after crashing during giant slalom event

American alpine skier Nina O'Brien is "alert and responsive" after she crashed during the giant slalom event at the Beijing Winter Olympics on Monday, the U.S. ski and snowboard team announced. 

Considered the top American alpine racer after Mikaela Shiffrin disqualified, O'Brien was going fast on the final turn when she slipped and appeared to hurt her leg, not far from the finish line. She was carried off the course on a stretcher. Video showed fellow skiers in disbelief following the crash. 

The U.S. ski and snowboard team's Twitter account said she was undergoing further evaluation. The team also said that O'Brien was worried about "delaying the race" and wanted to know "how fast she was skiing"