Mr. Jordan: Conditioner Eddie Plesa, Jr.'s undefeated 2-year-old injured a check ligament during a workout at Gulfstream Park West and will be sidelined indefinitely.
American Pharoah: The G1 Breeders' Cup Juvenile morning line favorite, who was withdrawn from that race due to a bruise in his left front foot, will likely return in February.
Calculator: Trainer Peter Miller's maiden, who was scratched from the Breeders' Cup Juvenile because of a lingering foot injury, will need at least a couple of weeks off before he can resume training.
Hashtag Bourbon : Trainer Kellyn Gorder said his charge, who finished ninth as the second choice in Keeneland's G1 Claiborne Breeders' Futurity, sustained a small chip in his left front ankle and is slated for surgery. Gorder hopes the colt can return during the Oaklawn Park meet this winter.
Om: The flashy Del Mar maiden winner will miss at least the remainder of his juvenile season due to a hock injury.
Competitive Edge: The unbeaten G1 Hopeful S. hero sustained a hairline fracture to his left foreleg and will miss the remainder of his juvenile season. Trainer Todd Pletcher said he believes the horse will be back early enough in his 3-year-old season to attempt to get onto the Triple Crown trail.