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Kentucky Derby hopeful Valhol trainer Dallas Keen (R) talks with his new jockey Willie Martinez (L) April 28 in the barn area at Churchill Downs in Louisville, Kentucky. Martinez is replacing jockey
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Kentucky Derby hopeful Valhol trainer Dallas Keen (R) talks with his new jockey Willie Martinez (L) April 28 in the barn area at Churchill Downs in Louisville, Kentucky. Martinez is replacing jockey
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