Classic hero Coroebus, winner of the 2,000 Guineas in May, suffered a fatal injury during the Prix du Moulin in France on Sunday.
Charlie Appleby's star colt was on the heels of the leaders when he fell about two furlongs from home in the Group One race at Longchamp. The horse had to be euthanised due to the extent of his injuries. His jockey William Buick managed to get to his feet and appeared unscathed.
The race was won by Ed Walker's mare Dreamloper who was partnered by Kieran Shoemark in the one-mile contest.
