Jockeys Paul Hanagan, Freddie Tylicki and Richard Kingscote all suffered injury after a nasty spill involving five horses at Wolverhampton.
The incident occurred rounding the home turn in the 20 Risk-Free Bet At Unibet Claiming Stakes, with the David Nicholls-trained Fitz Flyer coming down in the hands of apprentice Jordan Nason.
He brought down the Hanagan-ridden Ortac Rock, Tylicki's mount Pandar and Cape Of Hope under Kingscote.
Broke collar bone snapped arm broke wrist and elbow means very sore to top it of punctured lungs of to another hospital for op in the
— richard kingscote (@RKingscote) November 7, 2014
Powerful Pierre jinked on the inside of the track and unseated another apprentice rider, Toby Atkinson.
Nason and Atkinson escaped unscathed, although the other three riders went to hospital.
Wolverhampton's clerk of the course Fergus Cameron said: "Paul Hanagan has suffered a possible collarbone injury, but he was completely conscious and is calling in at the hospital on the way home.
"Freddie Tylicki has suffered a possible broken nose, but other than that he's unscathed. He's also heading home.
"Richard Kingscote has suffered possible arm and rib injuries and he has been referred to New Cross Hospital in Wolverhampton. He's been taken by ambulance.
"The other riders are unscathed."
Four of the horses returned none the worse, but Fitz Flyer suffered fatal injuries.
The stewards inquired into the fall of Fitz Flyer and were satisfied that no other horse or rider had contributed to it.
The following race, the penultimate contest of the evening, went off around 25 minutes later than scheduled.
"We'll crack on and we'll get to the end of the card when we get there," said Cameron.
Way later confirmed that Tylicki had also split his top lip and will be out of action for a week.
Shocking fall for MHS jockey @RKingscote at Wolverhampton tonight. Get well soon mate, you will come back stronger than ever. #SportHurts
— michael owen (@themichaelowen) November 6, 2014