Sovereignty and his rider Junior Alvarado at the recent Kentucky Derby at Churchill Downs. — AP
On a crisp, clear morning, a chestnut thoroughbred thundered down the dirt strip at Churchill Downs in Louisville, Kentucky in the United States, his exercise rider leaning forward above the saddle. Other horse-and-rider pairs followed.
Dr Will Farmer looked down from a viewing point, admiring the speed and agility of the 450kg animals.
