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The heirs to Frankie Dettori

It is all, it seems, in the tweaks. So said Aidan O’Brien, Ireland’s master-trainer supreme, before his tough filly Magical defeated Ghaiyyath, the world’s highest-rated horse, in the Irish Champion Stakes on Saturday. He wouldn’t have run her against the relentless galloper who had beaten Magical the month before, he insisted, if he hadn’t felt there was something he could tweak to make the difference. If ever there was a man in racing who shouldn’t have any regrets it is Aidan O’Brien, but in a fascinating Racing Post interview last week with David Jennings Aidan revealed: ‘Every single race we’re beaten in hurts. The bigger the race the more it