PICTURES OF THE DAY

Horses walk in the stable as the sun rises during morning workouts for the 2013 Kentucky Derby at Churchill Downs on May 3, 2013 in Louisville, Kentucky. (Photo by Jamie Squire/Getty Images)

Fans watch as Kentucky Derby 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 Kentucky Derby. (AP Photo/David Goldman)

In this March 13, 2013, photo provided by Four Footed Fotos, Magna Fortuna, with jockey Julio Felix up, rides to a 9 3/4-length win during a horse race at Hawthorne Park in Cicero, Ill. The 3-year-old gelding whose name means “great luck” was the longest of long shots when he won a recent race. His mother, Lulu, was purchased for $300 at a slaughter auction by Gail Vacca, founder and president of the Illinois Equine Rescue Center. Vacca found out later that Lulu was pregnant when purchased. (AP Photo/Courtesy Four Footed Fotos)

Celebrating in this photo are members of Rescue Me Racing, a team of 16 partners who each own a share of the horse. (AP Photo/Courtesy Four Footed Fotos)

Retired jockey Jose Santos pats the head of his 2003 Kentucky Derby winning mount Funny Cide in the paddock at Churchill Downs Thursday, May 2, 2013 in Louisville, Ky. Kentucky Horse Park worker Dixie Hayes, far left, holds the horse as former ownership syndicate managing partner Jack Knowlton, far right, watches. The 139th running of the Kentucky Derby is Saturday.(AP Photo/Garry Jones)

Trainer Chip Woolley leads 2009 Kentucky Derby winner Mine That Bird around the paddock at Churchill Downs Thursday, May 2, 2013 in Louisville, Ky. The 139th running of the Kentucky Derby is Saturday. (AP Photo/Garry Jones)

Former Kentucky Derby winning horses, Funny Cide (2003), right, and Mine That Bird (2009) walk through the crowd at Churchill Downs Thursday, May 2, 2013 in Louisville, Ky. heading back to the Kentucky Derby Museum. Both horses greeted fans in the paddock between the fifth and sixth races. (AP Photo/Garry Jones)

Morning line favorite Orb gets washed in the barn area during the morning training for the 2013 Kentucky Derby at Churchill Downs on May 2, 2013 in Louisville, Kentucky. (Photo by Andy Lyons/Getty Images)

 Rosie Napravnik the jockey for Mylute talks to the media during the morning training for the 2013 Kentucky Derby at Churchill Downs on May 2, 2013 in Louisville, Kentucky. (Photo by Andy Lyons/Getty Images)

 The field comes out of the gate to start the 139th running of the Kentucky Oaks at Churchill Downs on May 3, 2013 in Louisville, Kentucky. (Photo by Doug Pensinger/Getty Images)

Princess of Sylamar with jockey Mike Smith crosses the finish line to win the 139th running of the Kentucky Oaks at Churchill Downs on May 3, 2013 in Louisville, Kentucky. (Photo by Rob Carr/Getty Images)

 The pack rounds the first turn during the 139th running of the Kentucky Oaks at Churchill Downs on May 3, 2013 in Louisville, Kentucky. (Photo by Andy Lyons/Getty Images)