FILE - In this Monday, April 29, 2013, file photo, exercise rider Jenn Patterson rides Kentucky Derby entrant Orb for a workout at Churchill Downs in Louisville, Ky. Orb has been made the early 7-2 ... more 
FILE - In this Monday, April 29, 2013, file photo, exercise rider Jenn Patterson rides Kentucky Derby entrant Orb for a workout at Churchill Downs in Louisville, Ky. Orb has been made the early 7-2 favorite for the Kentucky Derby on Wednesday, May 1, 2013, with undefeated Verrazano the second choice in a full field of 20 horses. (AP Photo/Garry Jones, File) less 
1 / 30
Associated Press | Photo By Garry Jones, File
Wed, May 1, 2013 6:30 PM EDT