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Dunkirk is an American Thoroughbred Racehorse born in 2006. He is the son of graded stakes winner and major sire Unbridled's Song and multiple Grade 1 winner . He is owned by a syndicate composed of John Magnier, Derrick Smith, and Michael Tabor and trained by Todd Pletcher during his short racing career. Dunkirk acquired a measure of celebrity during the 2007 Keeneland Yearling Auction, where he sold for $3.7million.