Alysheba, '87 Derby winner

Alysheba won the 1987 Preakness and Kentucky Derby. (Barry Thumma/associated press)

LEXINGTON, Ky. - Alysheba, the 1987 Kentucky Derby and Preakness winner, has died at 25.

The champion stallion was euthanized Friday night at a medical center here. The Kentucky Horse Park said he was buried yesterday at its Hall of Champions.

Known on the track as "America's Horse," Alysheba also won the Breeders' Cup in 1988 and was honored as Horse of the Year.

Alysheba arrived at the horse park last year after eight years in Saudi Arabia.

The horse first stood at stud in Versailles.

The horse was the son of Alydar and was trained by Jack Van Berg.