Jockey Geovanni Franco took off his mounts on Sunday after he was involved in a spill during morning training.
Franco was aboard Arson, an unraced 2-year-old trained by Richard Baltas who sustained a fatal injury during a workout.
Earlier on Sunday morning, Needless to Say, a maiden race winner here in August 2020 for trainer Dean Pederson, died of an apparent internal injury during exercise, according to a track official.
Franco was taken to a local hospital and was released in late morning, according to his agent, Mike Ciani.