Group 1 performer Wichita has died while in recovery from an accident on the gallops.
Aidan O'Brien's Qipco 2,000 Guineas runner-up fractured a hind leg during his preparation for the Crystal Mile in Australia.
The No Nay Never colt had surgery and it was hoped he would eventually race again.
But the three-time winner unfortunately suffered complications, Racing Victoria reported.
“The connections of the Aidan O’Brien-trained Wichita have advised Racing Victoria (RV) that the horse sustained a further injury to its right hind leg while rehabilitating at Macedon Lodge from recent surgery," their statement said on Monday.
“Acting on the advice of stable veterinarians, the connections advise that Wichita was humanely euthanised on Friday October 23 as a result of the complications encountered in its recovery.
“RV extends its condolences to the owners of the horse, trainer Aidan O’Brien, his stable staff and all who cared for the horse and are greatly saddened by their loss.”
As well as his narrow Guineas loss to Kameko, Wichita was placed in two other Group 1 races – the St James’s Palace Stakes and the Dewhurst.
His last run in the UK resulted in a success in the Group 2 bet365 Park Stakes on Pertemps St Leger day at Doncaster.
