Lindsey Vonn’s road to her final Olympics has encountered some trouble.

The American skiing star was treated for a back injury after completing her World Cup Super-G race in St. Moritz, Switzerland on Saturday. Vonn went to the ground after crossing the finish line and observers said she was experiencing extreme pain. She was treated in a nearby house and later limped to a car without speaking to reporters.

Though her father later told the Associated Press that Vonn was “OK,” the news is concerning. Vonn missed the 2014 Winter Games in Sochi due to a right knee injury.

The 2018 Winter Games in PyeongChang, South Korea start on Feb. 8. Vonn, 33, has said this will be her final Olympics.

Vonn is one of the most decorated American skiers of all time, taking gold in the downhill at the 2010 Games in Vancouver and winning four overall World Cup titles.

She made news earlier this week when she said would “represent the people of the United States” at the Olympics “not the president.” Vonn also said she would not visit the White House as part of the traditional appearance by all American Olympians.

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