FILE - In this Jan. 20, 2011, file photo, Ashley Caldwell, of the United States, practices for the women's aerials at the World Cup freestyle skiing event in Lake Placid, N.Y. The budding U.S. aerials star considers herself a grizzled veteran after tearing the ACLs in both of her knees in a span of 363 days between 2011-12, though the injuries have done little to deter her from keeping her sights set on Sochi. (AP Photo/Mike Groll, File)