Kentucky Derby 2008

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  Trainer Todd Pletcher watches his horse finish second during a race at Keeneland in Lexington, Ky., Friday, April 11, 2008. A year after saddling a record-tying five horses in the Kentucky Derby, the nation's top trainer is likely down to his final two chances of running any of his 3-year-olds in America's greatest race on May 3. (AP Photo/Ed Reinke)

  AP

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  Trainer Todd Pletcher watches his horse finish second during a race at Keeneland in Lexington, Ky., Friday, April 11, 2008, as his assistant Tristan Barry cheers the horse on. A year after saddling a record-tying five horses in the Kentucky Derby, the nation's top trainer is likely down to his final two chances of running any of his 3-year-olds in America's greatest race on May 3. (AP Photo/Ed Reinke)

  AP

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  Trainer Todd Pletcher talks with a friend prior to a race at Keeneland in Lexington, Ky., Friday, April 11, 2008. A year after saddling a record-tying five horses in the Kentucky Derby, the nation's top trainer is likely down to his final two chances of running any of his 3-year-olds in America's greatest race on May 3. (AP Photo/Ed Reinke)

  AP

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  Blue Grass Stakes entrant Visionaire, with exercise rider Ray Handal up, is exercised on the Keeneland track in Lexington, Ky., Thursday, April 10, 2008. Trainer Michael Matz sends out Visionaire against 11 rivals in Saturday's Blue Grass Stakes horse race; a final prep before the Kentucky Derby three weeks later. (AP Photo/Ed Reinke)

  AP

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  Trainer Michael Matz puts a saddle away at the end of morning exercises at Keeneland in Lexington, Ky., Thursday, April 10, 2008. Matz sends out Visionaire against 11 rivals in Saturday's Blue Grass Stakes horse race; a final prep before the Kentucky Derby three weeks later. (AP Photo/Ed Reinke)

  AP

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  Trainer Michael Matz talks with friends after watching Blue Grass Stakes entrant Visionaire exercise at Keeneland in Lexington, Ky., Thursday, April 10, 2008. Matz sends out Visionaire against 11 rivals in Saturday's Blue Grass Stakes horse race; a final prep before the Kentucky Derby three weeks later. (AP Photo/Ed Reinke)

  AP

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  ** FILE ** War Pass, ridden by Cornelio Velazquez, rounds the turn at the top of the stretch on his way to winning the Breeders Cup Juvenile horse race at Monmouth Park in this Oct. 27, 2007 file photo in Oceanport, NJ. owner Robert LaPenta nervously awaits the Wood Memorial at Aqueduct on Saturday. The outcome will decide whether War Pass will run in the Kentucky Derby on May 3. (AP Photo/David Gard, file)

  AP

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  Bob Elliston, CEO of Turfway Park, speaks after the post position draw of the 2008 Lane's End Stakes horse race during a luncheon at the track, Wednesday, March 19, 2008 in Florence, Ky. The Lane's End Stakes, a 1-1/8-mile prep race for the Kentucky Derby will take place this Saturday. (AP Photo/David Kohl)

  AP

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  MONMOUTH JUNCTION, NJ - OCTOBER 23: Carl Nafzger, trainer of Kentucky Derby winner Street Sense, fields questions from the media October 23, 2007 in preparation for the Breeders' Cup at Monmouth Park in Monmouth Junction, New Jersey. (Photo by Matthew Stockman/Getty Images)

  Getty Images

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  MONMOUTH JUNCTION, NJ - OCTOBER 23: Kentucky Derby winner Street Sense is bathed after a morning workout October 23, 2007 in preparation for the Breeders' Cup at Monmouth Park in Monmouth Junction, New Jersey. (Photo by Matthew Stockman/Getty Images)

  Getty Images