Olympic downhill skiing champion Lindsey Vonn suffered a partial tear to the ACL in her right knee and minor cuts and bruises on her body during a fall in training on Tuesday at Copper Mountain in Colorado, her publicist said.
Lewis Kay said in a statement that Vonn will "pursue aggressive physical therapy and will determine the next time she is able to compete after seeing how she responds to the treatment."
Vonn, 29, plans to rest for a few days before further examination.
Earlier this year, she tore the ACL and MCL in her right knee and fractured her tibia during a crash in Austria.
Vonn is preparing to return to racing at a World Cup event on Nov. 29 in Beaver Creek, Colo., and aiming for the Sochi Olympics in February.
A four-time overall world champion, Vonn became the first American woman to win the Olympic downhill title at the Vancouver Games in 2010.
---As Manny Pacquaio and Brandon Rios prepare for their fight on Saturday night in Macau, trainers for the boxers were involved in an altercation.
Pacquaio's trainer, Freddie Roach, was upset that the Rios camp exceeded their allotted time at the training center and was shoved by a member of Rios' team, escalating tensions between the two camps.
Video showed that Roach asked Robert Garcia, Rios' trainer, to leave the gym area beneath The Venetian Theatre, where the fight will be held.
Surveillance video showed Alex Ariza, Rios' strength and conditioning coach and who used to work for Roach and Pacquiao,
kicking Roach in the stomach.
Roach suffers from Parkinson's Disease.
A member of Rios' camp started shouting at Roach and Pacquiao's trainer allegedly used a racial slur that started a melee that required security to intervene, according to media reports.
Neither fighter was involved. Rios continued to work out on an exercise machine during the tense situation. Pacquiao was not in the room.