11/02/2016 4:00PM

Breeders' Cup clocker: Melatonin becomes workaholic ahead of Classic

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ARCADIA, Calif. – A cool, crisp morning for Breeders’ Cup horses training at Santa Anita on Wednesday was marred at the very end when Metaboss was pulled up by his rider near the quarter pole during a routine gallop over the turf course and was vanned off with a career-ending injury.

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