Lindsey Jacobellis, the 2010 Olympic boardercross gold medalist and a seven-time X Games champion, tore her left ACL in a training accident on Wednesday at Buttermilk Mountain in Aspen, Colorado. Jacobellis will miss Friday's opening boardercross competition at the X Games and forfeit her chances of winning gold in the event five years in a row. Jacobellis was running a snowboarder X course on Wednesday when she carried too much speed into a jump and crashed. "I wish all the best to the ladies this week, and can't wait to be back in 2013," she said. In an unrelated accident, two-time Olympic boardcross champion Seth Wescott tore his left pectoral muscle last week in a crash in Switzerland. Wescott sucessfully underwent surgery to repair the tear on Wednesday.
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