Lindsey Vonn of the USA celebrates after taking 1st place during the Audi FIS Alpine Ski World Cup Women's Giant Slalom on January 26, 2013 in Maribor, Slovenia. Credit: Stanko Gruden/Agence Zoom/Getty Images

Lindsey Vonn is in repair. The four-time overall World Cup champion and Olympic gold medalist sustained a knee injury during the opening day of the Alpine Ski World Championships in Austria on Tuesday, Feb. 5, but she is "fine," a source tells Us Weekly.

"She's banged up but fine. She's texting people," the source told Us of Vonn's condition post-crash.

According to a release from Vonn's sponsor Red Bull, U.S. Ski Team Medical Director Kyle Wilkens determined that Vonn suffered a torn ACL and MCL in her right knee and a lateral tibial plateau fracture. She was evaluated and released shortly after being admitted to the hospital for examination.

Earlier in the day, Vonn, 28, was airlifted to a nearby hospital in Austria after reportedly losing her balance landing a jump during the super G (super giant slalom) of the competition. Her right ski flew off almost immediately, and she slid off-course and into a gate. 

Doctors at the hospital tell CNN that Vonn's injuries are not life-threatening, but Vonn will be out for the remainder of the season, according to the U.S. team's website. The Olympic gold medalist is expected to return for the 2013-14 World Cup and next February's Winter Olympics in Sochi.

The race had already been postponed for more than three hours because of the fog prior to Vonn's time on the slopes.

On Monday, Vonn wrote in her weekly Denver Post diary that she and her teammates had been unable to train on the course because of the weather conditions.

"We were supposed to have free skiing on the race course Monday, which means two or three runs for you to learn about the terrain and snow conditions," she wrote. "But because it snowed so much, they closed it to everyone including coaches."

"None of our staff has been on the hill," she continued. "We don't know what shape the hill is in. We don't know anything about it."