Jockeys Carl Williams, 44, and Alberto Higuera, 51, were hurt during the ninth race Sunday and taken to John C. Lincoln Hospital. Williams suffered a leg injury and Higuera suffered a broken collar bone. They were released form the hospital late Sunday.
The racetrack said Williams' mount, LS Sunrise, suffered a fatal aneurysm and collapsed, throwing Williams to the ground. Higuera, aboard Arizona Twist, was unable to unable to avoid the fallen horse and went down. Arizona Twist was not injured.