Eurosilver, winner of the 2003 Lane's End Breeders' Futurity (gr. II) and this year's Skip Away Handicap (gr. III), has been retired after being diagnosed with a hairline fracture in his left hind leg following a sixth-place finish in the Aug. 6 Whitney Handicap (gr. I).Mohammed Moubarak, racing manager for owner-breeder Buckram Oak Farm, said no stud plans have been made for the 4-year-old son of Unbridled's Song who won four of 12 career starts, with four runner-up efforts, and earned $622,310.Initially trained by Hall of Famer Nick Zito, Eurosilver was trained from mid-2004 through this year's Whitney by Carl Nafzger.In addition to his stakes wins, Eurosilver finished second to Saint Liam in this year's Stephen Foster Handicap (gr. I) at Churchill Downs, and second in the Swale Stakes (gr. III) and Perryville Stakes as a 3-year-old.