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1. AP Photo 7 months ago
   

   Rick Porter, owner of 2008 Kentucky Derby entry Eight Belles holds up a plaque during the ceremony for the horse at the 135th Kentucky Derby at Churchill Downs Saturday, May 2, 2009, in Louisville, Ky. View Photo »

2. AP Photo 7 months ago
   

   Rick Porter, owner of 2008 Kentucky Derby entry Eight Belles, waits for the next race at the 135th Kentucky Derby at Churchill Downs Saturday, May 2, 2009, in Louisville, Ky. View Photo »

3. AP Photo 7 months ago
   

   Rick Porter, owner of 2008 Kentucky Derby entry Eight Belles, waits for the next race at the 135th Kentucky Derby at Churchill Downs Saturday, May 2, 2009, in Louisville, Ky. View Photo »

4. AP Photo 7 months ago
   

   Barbaro is held by jockey Edgar Prado after injuring his leg at the start of the 131st running of the Preakness Stakes in this Saturday, May 20, 2006 file photo, at Pimlico Race Course in Baltimore. View Photo »

5. AP Photo 7 months ago
   

   In this May 3, 2008, file photo, track personnel try to hold down Eight Belles after the 134th Kentucky Derby at Churchill Downs in Louisville, Ky. Eight Belles was euthanized after breaking both front ankles following a second-place finish in the Kentucky Derby. View Photo »

6. AP Photo 9 months ago
   

   In this May 3, 2008 file photo, track personnel try to hold down Eight Belles after the 134th Kentucky Derby at Churchill Downs in Louisville, Ky. Eight Belles was euthanized after breaking both front ankles following a second-place finish in the Kentucky Derby. View Photo »