Churchill Downs to work with investigators after four horse deaths

• Track to work with regulators after death of horses in lead-up
• Banicki: What do horses feel at the Derby? Mostly fear and pain

Churchill Downs racetrack will work with regulators to conduct an investigation after four horses died in the lead-up to Saturday's Kentucky Derby, the venue said on Wednesday.

Wild On Ice was entered to run in the first race of the prestigious Triple Crown series but had to be euthanized last week after suffering a leg injury during a workout at the Louisville, Kentucky, track.