U.S. ski racer Lindsey Vonn attends a press conference Sunday in Schladming, Austria. Vonn crashed during the super-G at the world championships Tuesday.
U.S. ski racer Lindsey Vonn attends a press conference Sunday in Schladming, Austria. Vonn crashed during the super-G at the world championships Tuesday. "I can assure you that I will work as hard as humanly possible to be ready to represent my country next year in Sochi," said Vonn in a statement. (Luca Bruno, The Associated Press)

Lindsey Vonn may be changing her plans for knee surgery to repair the damage caused by her crash at the world alpine championships.

Her father, Alan Kildow, told The Denver Post on Wednesday morning that she was expecting to fly home Friday and that U.S. Ski Team physician Bill Sterett would do her surgery Sunday in Vail. Sterett has treated her since she was 13 years old.

But later Wednesday, Kildow said it was looking like she would seek a second opinion.

"I think there's a real possibility that she's going to have it done someplace else," said Kildow, reached in his office in Minneapolis.

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Kildow also said she might not be leaving Europe as soon as he thought.

"There's a concern about putting her in the air too soon, apparently," Kildow said.

Until Tuesday, Vonn had never had a serious knee injury, which is rare for ski racers. Kildow is a former ski racer, and he commiserated about that in a phone conversation Tuesday with an old "traveling buddy," former U.S. Ski Team downhiller Andy Mill of Aspen.

"I said, 'We both know the drill,' " Kildow said. "I've had four knee surgeries and he's had 12, I think. You get in the starting gate only so many times in downhill and speed events, and eventually the numbers catch up with you."