MILAN An international sports tribunal on Monday ruled it lacks jurisdiction to intervene in the case of Katie Uhlaender, an American skeleton racer denied a sixth Olympic bid by an alleged Canadian point-rigging scheme. This ruling, issued by the Court of Arbitration for Sport (CAS), dooms Uhlaender's fight to compete at the Milan Cortina Games. In a statement, a CAS panel said the dispute fell outside the time window during which it holds sway over sports disputes related to the Olympics.