NEW : Snowboard Association suffered right knee ligament damage and a fracture . Watch : NEW : Four -time Alpine World Cup champion released from hospital . Snow prevented her from practicing on the race course 2010 . Vonn won the downhill gold in the Monday Alpine World Cup in the United States .
NEW : Snowboard Association suffered right knee ligament damage and a fracture . NEW : Four -time Alpine World Cup champion released from hospital . Snow prevented her from practicing on the race course 2010 . Vonn won the downhill gold in the Monday Alpine World Cup in the United States .