Aidan O'Brien is counting the cost of withdrawing his runners from the Prix de l'Arc de Triomphe. The Irish trainer took Mogul, Japan, Serpentine and Sovereign out of the Longchamp feature, where they were trying to thwart Enable's historic hat-trick bid.
None of the quartet will be competing after they tested positive for banned substance zilpaterol - believed to be from feed supplied by Gain Equine Nutrition.
O'Brien and his sons Joseph and Donnacha pulled their horses from Sunday's prestigious card, following the results of samples from a French laboratory. "I feel sorry for the lads," O'Brien senior told racing programme Luck On Sunday. "They put so much in and the cost is incredible. "Everyone's working so hard to try to breed the
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