British Olympic icon and Tour de France winner Bradley Wiggins has admitted he doens't know how he's still alive after cocaine binges saw him sniffing it off his Olympic gold medal View 3 Images Bradley Wiggins sniffed cocaine off his gold medal (Image: Getty Images)

Sir Bradley Wiggins has admitted he doesn't know how he's still alive after drug addiction hell saw him snorting cocaine off his Olympic medal . ‌

Sir Brad, 45, was riding high in 2012, turning the streets of London gold during the men's time trial - his fifth Olympic gold - a couple of weeks after he had become the first Briton to win the Tour de France . ‌

The sky was seemingly the limit for Britain's latest hero , but 12 months later he wasn't in Team Sky's Tour de France line-up and six years later a

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