The Olympic downhill racing champ posted an update on her Facebook page on Friday telling fans that she hoped to be back on her skis very soon.
"Rehab is going well and I am working as hard as I can to race in Lake Louise in a few weeks," she wrote.
The 29-year-old, who'd been derailed by a serious knee injury earlier this year, partially tore her right ACL again in the training accident at Copper Mountain.
“Lindsey is recovering very quickly from abrasions to her face and contusions to her shoulder blade," says Dr. William Sterett, who's treating the gold medalist. "Beyond that, she has a stable knee with an MRI finding of a partial tear of her ACL graft. With therapy, she is progressing well while not losing any of the strength she worked so hard to achieve."
Nathan Bilow / AP
"While her rehab is progressing, she is not at a point where she will be able to ski next week and is unfortunately withdrawing from the race at Beaver Creek," her rep tells PEOPLE.
There was speculation that the injury would also take her out of contention for the Winter Olympics in Sochi, Russia, in February, but Lindsey is determined to compete.
"Don't worry guys, this is only a temporary setback," she wrote. "Nothing will keep me from picking myself back up and continuing to fight for my dreams. #sochi2014 #whenyoufallgetbackup #notstopping #workinghard"
With reporting from Elizabeth Leonard