Lindsey Vonn may be in too much pain to keep skiing

Cortina, D’Ampezzo, Italy • What was evident all weekend for Lindsey Vonn became clear to everyone else on Sunday.The American skier's surgically repaired knees simply don't let her apply the power she requires to win races anymore.The pain is too severe; the psychological impact too much to bear; her pride too great.No wonder that Vonn is considering moving up her retirement.After failing to finish a World Cup super-G, Vonn said leaving the sport immediately "is a possibility.""But I