2006 KENTUCKY DERBY WINNER BARBARO EUTHANIZED

Barbaro, ridden by Edgar Prado wins the 2006 Kentucky Derby at Churchill Downs in Louisville, Kentucky, in this May 6, 2006 file photo. Barbaro, who broke his leg in the Preakness Stakes, was euthanized January 29, 2007, after complications from his injuries. (UPI Photo/Mark Cowan/File)