Olympic skiing star Lindsey Vonn reinjured her right knee during a training crash at Copper Mountain on Tuesday, a spokesman said.
Vonn "sustained a mild strain to her right knee, a partial tear to her right ACL, minor facial abrasions and scapular contusions from her fall," spokesman Lewis Kay said in an email to 7NEWS on Wednesday.
"She needs to rest for a few days and then will pursue physical therapy and will determine the next time she is able to compete after seeing how she responds to the treatment," Kay added.
Vonn had the right knee surgically repaired earlier this year after she shredded her anterior cruciate ligament and medial collateral ligaments in a crash at the world championships in Schladming, Austria, in February.
After the Tuesday crash, U.S. Ski Team spokesman Tom Kelly told ESPN that Vonn was taken off the mountain on a sled.
She started snow training again in Chile at the start of September. She skied in Austria last month.
Vonn has an home in Vail.