Louisville

052d0f85303e0211530f6a706700d63c.jpg

Exercise rider Jelani Grant takes Kentucky Derby entrant Candy Boy for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Charlie Riedel)

eeaa081e30d40511530f6a706700d82b.jpg

Dan Queenan holds Kentucky Derby entrant Commanding Curve after a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/David Goldman)

5ab17a4330500211530f6a7067007a25.jpg

Exercise rider Isabelle Bourez takes Kentucky Derby entrant Intense Holiday for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Charlie Riedel)

0d62dbce309c0411530f6a706700e741.jpg

Kentucky Derby entrant Tapiture gets a bath after a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Garry Jones)

ef35464930540311530f6a706700dfef.jpg

Exercise rider Ovel Merida takes Kentucky Derby entrant Vinceremos for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Morry Gash)

4d01a1a5304d0211530f6a70670016b9.jpg

Exercise rider Joel Barrientos takes Kentucky Derby entrant General a Rod for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Morry Gash)

376a1d1930510211530f6a706700df5c.jpg

Exercise rider Nick Bush takes Kentucky Derby entrant We Miss Artie for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Charlie Riedel)

df3fe3e130940411530f6a7067005e79.jpg

Exercise rider Simon Paine takes Kentucky Derby entrant Samraat for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Charlie Riedel)

09afe3a130420211530f6a706700d817.jpg

Exercise rider William Delgado takes Kentucky Derby entrant California Chrome for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Morry Gash)

072a3b9b30540311530f6a7067007316.jpg

Exercise rider Ezequiel Perez takes Kentucky Derby entrant Danza for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Morry Gash)

659ee9d830310211530f6a7067005dec.jpg

Exercise rider Joel Barrientos takes Kentucky Derby entrant Vicar's in Trouble for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Morry Gash)

b1dc5a1030400211530f6a7067002c05.jpg

Exercise rider William Delgado takes Kentucky Derby entrant California Chrome for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Morry Gash)

bf0875ad30440211530f6a706700b77b.jpg

Exercise rider Joel Barrientos takes Kentucky Derby entrant General a Rod for a morning workout during a morning workout at Churchill Downs Friday, May 2, 2014, in Louisville, Ky. (AP Photo/Morry Gash)