KENTUCKY DERBY TRAINING

 ArchArchArch (l) gallops during the morning exercise session in preparation for the 137th Kentucky Derby at Churchill Downs on April 29, 2011 in Louisville, Kentucky. (Photo by Matthew Stockman/Getty Images)

Brilliant Speed gallops during the morning exercise session in preparation for the 137th Kentucky Derby at Churchill Downs on April 30, 2011 in Louisville, Kentucky. (Photo by Matthew Stockman/Getty Images)

 Decisive Moment runs during the morning exercise session in preparation for the 137th Kentucky Derby at Churchill Downs on May 2, 2011 in Louisville, Kentucky. (Photo by Matthew Stockman/Getty Images)

Mucho Macho Man gallops during the morning exercise session in preparation for the 137th Kentucky Derby at Churchill Downs on April 29, 2011 in Louisville, Kentucky. (Photo by Matthew Stockman/Getty Images)

Pants On Fire gallops during the morning exercise session in preparation for the 137th Kentucky Derby at Churchill Downs on April 30, 2011 in Louisville, Kentucky. (Photo by Matthew Stockman/Getty Images)

Plum Pretty gallops during the morning exercise session in preparation for the 137th Kentucky Oaks at Churchill Downs on April 30, 2011 in Louisville, Kentucky. (Photo by Matthew Stockman/Getty Images)

Soldat (R) gallops during the morning exercise session in preparation for the 137th Kentucky Derby at Churchill Downs on May 2, 2011 in Louisville, Kentucky. (Photo by Matthew Stockman/Getty Images)

 Uncle Mo works out along side Stay Thirsty during the morning exercise session in preparation for the 137th Kentucky Derby at Churchill Downs on May 1, 2011 in Louisville, Kentucky. (Photo by Matthew Stockman/Getty Images)