She had planned to return at the World Cup event in Beaver Creek , Colorado on November 29 . Vonn suffered a minor strain to her right knee and a partial tear to her right ACL . She had major surgery on the same knee this week . Vonn crashed during a practice session at Copper Creek in Michigan on Sunday .
Vonn suffered a minor strain to her right knee and a partial tear to her right ACL . She had major surgery on the same knee this week . Vonn crashed during a practice session at Copper Creek in Michigan on Sunday .