Vonn Back on Mountain After Injury Lindsey Vonn had her first day of downhill training in Copper Mountain, Colo., taking five runs through a two-mile course. Her knee felt "really good," said Vonn, who added: "I feel fresh and training hard. Everything is perfect. Vonn, 29, shredded her anterior cruciate and medial collateral ligaments in a crash at the world championships in Austria last February.