Petrushka, the 2000 champion 3-year-old filly in England and Ireland, has been retired after suffering a strain to her right fore tendon while finishing fifth in the Vodafone Coronation Cup (Eng-I) at Epsom last Friday, June 8. She is scheduled to be sold at public auction this fall in either the U.S. or Britain."This obviously explains her disappointing run in the Coronation Cup, which was too bad to be true," said Harry Herbert, managing director of Highclere Thoroughbred Racing, which owns the filly. "It is a bitter blow."Trained by Sir Michael Stoute, Petrushka raced for the Highclere Library partnership. The 4-year-old daughter of Unfuwain out of Ballet Shoes won five of nine career starts. Winner of her only start at age two, Petrushka blossomed as a 3-year-old. Included in her four victories from seven starts last year were three consecutive group I victories in three different countries -- Kildangan Stud Irish Oaks, England's Aston Upthorpe Yorkshire Oaks, and the Prix de l'Opera Hotel du Lac Barriere in France. Petrushka completed her championship season with a fifth-place finish as the 7-5 favorite in the Breeders' Cup Filly & Mare Turf, her only U.S. start."Fillies like this don't come around very often and her race record speaks for itself," said Herbert, noting the filly will be sold either at Keeneland November Breeding Stock Sale or the Tattersalls December Sale in Newmarket, England. "She looks sure to make a tremendous impact as a broodmare as she is not only a beautiful and correct filly to look at but she also boasts an outstanding pedigree being out of a half-sister to Spectrum and from the family of Millenary and Sun Princess".