Kempton's meeting this afternoon was delayed after an incident in the Day Delegate Rates From £39 Median Auction Maiden Stakes which resulted in three fallers.
David Lanigan's Don Ottavio appeared to break down badly just inside the final furlong, throwing Ted Durcan to the floor.
Sylvester Kirk's Silvercombe was close behind and had nowhere to go, being brought down and sending Renato Souza crashing with him while Seb Sanders was also brought down on board John HIlls' Synonym.
Sanders was fit enough to ride in the following race while Ted Durcan rose to his feet but Souza was stretchered away and unfortunately Silvercombe was reportedly put down.
Souza was taken to St Peter's Hospital Chertsey for precautionary X-rays.
"He was complaining of pains in his neck when I saw him in the jockeys' hospital here, but he was able to move his arms and legs. Obviously they just put a brace on him (as a precaution)," said Kempton clerk of the course Barney Clifford.