A horse named Commander Coil, a 3-year-old gelding, suffered a shoulder injury in the morning while training, according to a statement from the Stronach Group, which owns Arcadia's Santa Anita Park. The horse was euthanized.
"Equine shoulder injuries are rare, especially for a horse that is galloping as opposed to breezing or racing. A comprehensive evaluation will be completed to understand what might have caused this uncommon injury," the Stronach Group said in a statement.
The last horse death at the track was March 31, when a horse named Arms Runner suffered a severe injury to his right front leg and had to be euthanized.