FILE - In this April 28, 2004, file photo, trainer Steve Asmussen, right, leads Kentucky Derby hopeful Quintons Gold Rush and exercise rider Scott Blasi off the track after a morning workout at Churchill Downs in Louisville, Ky. Thoroughbred racing regulators in New York and Kentucky are investigating allegations of mistreatment of horses by the Hall of Fame-nominated trainer and his top assistant. The states' racing commissions said Thursday, March 20, 2014, investigations were launched after People for the Ethical Treatment of Animals provided video evidence from an undercover investigation of Asmussen and associates. (AP Photo/Daniel P. Derella, File)
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