A horse gets a bath during the early morning hours after workouts ChurchillDowns in Louisville, KY. The 142nd running of the Kentucky Derby is set for Saturday. Photo by MichaelMReaves. #horseracing #horses #onassignment #photooftheday #thoroughbred #kentuckyderby #instagram #sportsphotography #photojournalism #kyderby #kentuckyderby #gettysport gettysport