Sir Graham Wade, the winner of six of his 23 starts for Mark Johnston, including at Glorious Goodwood in 2012, was injured and pulled up in the two-and-a-half-mile Ascot Stakes.
Jenny Hall, chief veterinary officer for the British Horseracing Authority, said of Case Statement: “The colt received immediate first aid on the course from racecourse veterinary surgeons before being transferred by horse ambulance to the veterinary assessment centre at the racecourse stables, where he was X-rayed.
“The X-rays confirmed Case Statement had sustained a fracture of his near-fore fetlock. Following full evaluation, the nature of the injury was such that sadly there was no other option but the horse to be humanely put down.”
Hall said of Sir Graham Wade: “The gelding received immediate first aid on the course from racecourse veterinary surgeons.
“The vets diagnosed that he had suffered a serious pelvic fracture and the nature of the injury was as such that there was no other option but for Sir Graham Wade to be humanely put down.”