By The Blood-Horse staff and The Horse staff

Secret Compass, a 2-year-old Thoroughbred filly, was euthanized today (Nov. 2) after suffering a condylar fracture during the Breeders’ Cup Juvenile Fillies race at Santa Anita Park in Arcadia, Calif.

"Secret Compass sustained a lateral condylar fracture with dislocation, which is an injury we can’t bring them back from because when they dislocate on the track, they lose their blood supply, so she has been euthanized," reported Wayne McIlwraith, BVSc, FRCVS, PhD , Dipl. ACVS, Dipl. ECVS, the on-call veterinarian for the American Association of Equine Practitioners.

The condyle is the bulbous bottom or distal end of the cannon bone that fits into the fetlock joint, and lateral fractures are those that occur on the outer half of the bone.

Jockey John Velazquez, who was aboard Secret Compass, was transported to nearby Huntington Memorial Hospital. He later underwent surgery to remove his ruptured spleen, officials at Santa Anita Park said.