Frankie Dettori has told the Daily Star that he was "ashamed and embarrassed" after being banned for six months over a positive drugs test.
He said: "It was one night of madness with friends. I dropped my guard at a moment when I was at my weakest."
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China's slowdown means this year's global economic growth will slip to the lowest level since the recession in 2009, the IMF predicts.
David Cameron has defended the Home Secretary's immigration speech, calling it a good, thoughtful speech" on how to control immigration.