Co-trainer Adrian Bott has today reported to Racing NSW Stewards that Invincible Star has undergone arthroscopic surgery to remove bone chips in both knees soon after its last start in the Coolmore Stud Stakes at Flemington 4 November 2017.
The surgery is in addition to the same surgery performed on the mare in March 2017.
A veterinary clearance has been provided by the stable veterinarian and the mare has barrier trialled successfully on two occasions subsequent to the surgery.