VERSAILLES, Ky. (AP) - Kentucky Derby winner Super Saver was retired because of concern over bone bruises in his legs and will become a stud horse.

Tests last month revealed the bruises, WinStar Farm racing manager Elliott Walden said. He anticipated a full recovery but felt there was a ``slight risk'' the colt would not return to the form he showed in the spring.

``He has nothing more to prove,'' Walden said.

Super Saver and jockey Calvin Borel romped in the slop at Churchill Downs on May 1, beating Ice Box by 2 1/2 lengths to give trainer Todd Pletcher his first Derby victory.

A shot at the first Triple Crown in more than 30 years disappeared two weeks later at the Preakness, when he faded to eighth. The 3-year-old colt was a nonfactor in the Haskell and Travers before the bruises were found. WinStar limited Super Saver to barn rest for 60 days before making the decision to retire him.

``We ultimately felt like it was best for him to retire now and we're thrilled to have the rare opportunity to stand a horse of his caliber here where he was born and raised,'' WinStar president Doug Cauthen said.

Super Saver stamped himself a Derby contender last fall, setting a stakes record in the Kentucky Jockey Club Stakes at Churchill Downs. He backed it up this spring, finishing a close third in the Tampa Bay Derby and second in the Arkansas Derby.

He drew the fourth post in the 20-horse Derby field and Borel guided him expertly around the soggy track after going off as the second choice. Using the rail-hugging ride that has become his trademark, Borel won his third Derby in four years and ended Pletcher's Derby drought.

``Super Saver was my fastest 2-year-old last year, and his stakes-record performance in the (Kentucky) Jockey Club told me he was a Derby horse,'' Pletcher said. ``I just had to harness that speed and get him ready. Thank God it happened just that way.''