Champion British jockey Kieren Fallon was injured Wednesday when his mount was brought down in a four-horse pileup in the last race at the Royal Ascot meeting. Earlier in the day, Fallon had two victories to lead all riders at the meet."He has injured his left shoulder and has been to the hospital," course doctor Richard McKenzie said after Fallon's accident in the last race on the second day of Britain's biggest race meeting of the year. " There was nothing else apparent and his only problems were coming from his shoulder and left arm. He was fully conscious throughout."According to Sporting Life, the incident occurred when Prairie Falcon, one of 24 runners in the Ascot Stakes, slipped approaching the final turn, causing three other horses to fall. The fallen horses were Fallon's mount Alhawa, as well as Natural Eight and Generosa. The newspaper reported the horses all appeared to be uninjured.Seamus Heffernan, aboard Generosa, was not injured and Alan Daly, the rider of Natural Eight, was treated by paramedics at the scene, Sporting Life reported. Michael Hills, the jockey of Prairie Falcon, was treated at the racetrack and Fallon was taken to the hospital after being treated for about 15 minutes while on the course.The 2 1/2-mile marathon was won by Barba Papa, with Seliana second and Heros Fatal third. Stewards conducted an inquiry as a result of the accident but no action was taken. Earlier in the day, Fallon had won the 32-horse Royal Hunt Club with Caribbean Monarch and the Chesham Stakes with P. D. Savil's Celtic Silence (by Celtic Swing).Another riding double was posted by Kevin Darley, who took the Queen Mary Stakes with Romantic Myth and was victorious aboard Observatory in the Jersey Stakes.