Trainer Rudy Rodriguez rides Kentucky Derby hopeful Vyjack for a workout at Churchill Downs, May 1, 2013, in Louisville, Ky.
Horses go out for a morning workout at Churchill Downs Friday, May 3, 2013, in Louisville, Ky. Saturday will be the 139th running of the famous race.
Exercise rider Emerson Chavez waits to take Kentucky Derby hopeful Golden Soul for a workout at Churchill Downs, May 1, 2013, in Louisville, Ky.
Kentucky Derby hopefuls Falling Sky, left to right, Charming Kitten and Black Onyx go for a morning workout at Churchill Downs, May 1, 2013, in Louisville, Ky.
Jockey Rudy Quevedo rides Kentucky Derby entrant Oxbow for a workout at Churchill Downs, May 2, 2013, in Louisville, Ky.
Karen Vanzant, from Brookfield, Colo., walks through the paddock with her fancy hat before the running of the 139th Kentucky Derby at Churchill Downs Friday, May 3, 2013, in Louisville, Ky.
Exercise rider Patti Krotenko rides Kentucky Derby hopeful Charming Kitten for a workout at Churchill Downs, May 1, 2013, in Louisville, Ky.
A rider makes his way to the track for a morning workout at Churchill Downs, May 2, 2013, in Louisville, Ky.
A jockey looks over the track as the sun begins to rise during morning workouts at Churchill Downs, May 2, 2013, in Louisville, Ky.
Exercise rider Patti Krotenko rides Kentucky Derby entrant Charming Kitten for a workout at Churchill Downs, May 3, 2013, in Louisville, Ky.
People watch as horses take to the track for a morning workout at Churchill Downs, May 1, 2013, in Louisville, Ky.
Exercise rider Javier Harrera rides Kentucky Derby entrant Normandy Invasion for a workout at Churchill Downs, May 2, 2013, in Louisville, Ky.
A horse waits to take his morning workout at Churchill Downs, May 3, 2013, in Louisville, Ky.
Ray Amato Sr. shoes a horse named Herro at Churchill Downs, May 1, 2013, in Louisville, Ky.
A horse breaks free during a morning workout at Churchill Downs, May 3, 2013, in Louisville, Ky.
Exercise rider Emerson Chavez rides Kentucky Derby entrant Golden Soul for a workout at Churchill Downs, May 2, 2013, in Louisville, Ky.
A horse walks past the starting gate during a morning workout at Churchill Downs, May 2, 2013, in Louisville, Ky.
Trainer Todd Pletcher watches horses during a morning workout at Churchill Downs, May 2, 2013, in Louisville, Ky.
Exercise rider Jenn Patterson rides Kentucky Derby entrant Orb for a workout at Churchill Downs, May 3, 2013, in Louisville, Ky.
A horse makes its way to the track for a morning workout at Churchill Downs, May 3, 2013, in Louisville, Ky.
Jockey Ramone Vazquez watches as Kentucky Derby horses enter the track at Churchill Downs, May 1, 2013, in Louisville, Ky.
A rider gets ready for a morning workout at Churchill Downs, May 2, 2013, in Louisville, Ky.
Exercise rider Jonny Garcia gets ready to take Kentucky Derby entrant Goldencents for a workout at Churchill Downs, May 3, 2013, in Louisville, Ky.
Horses make their way around the track during the second race before the running of the 139th Kentucky Derby at Churchill Downs, May 3, 2013, in Louisville, Ky.
Offalia Mehia holds a horse while it is being bathed after a morning workout at Churchill Downs, May 1, 2013, in Louisville, Ky.