The Aga Khan's Valyra, winner of this year's Prix de Diane-Longines (Fr-I), suffered a fracture to her femur while training at Deauville in France the morning of Aug. 29 and had to be euthanized due to the extent of her injury.

"It is a terrible accident and a great loss for His Highness the Aga Khan and our stable," said trainer Jean-Claude Rouget in a statement. "We have lost a filly with true class. She was a very sound individual and a pleasure to train. Her full potential had yet to be realized, but there was no other option than to put down, her injury proving too severe."

The English-bred daughter of Azamour—Valima, by Linamix, was unbeaten in three starts this year since starting her career in April. She was due to return to Longchamp in September in the Prix Vermeille (Fr-I), in preparation for a posssible start in the Prix de l'Arc de Triomphe (Fr-I) in October.

A half sister to other stakes winner Valiyr (by Alhaarth), Valyra is from the family of Breeders' Cup Mile (gr. IT) winner Val Royal.

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