I'll Have Another, the winner of Kentucky Derby and Preakness Stakes, is out of Saturday's Belmont Stakes, a spokesman for the horse's trainer said Friday.
The 3-year-old colt and jockey Mario Gutierrez would have made a run for the first Triple Crown in 34 years. Since 1990, only seven horses have won the first two legs of the title.
I'll Have Another was "lightly raced" and only competed in two prep races leading up to the Derby. He competed in the shadow of Bodemeister, who was predicted to win the Kentucky Derby.