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Sir Bradley Wiggins achieved five Olympic gold medals, eight world titles and was the first Briton to win the Tour de France.

Sir Bradley speaks to Today's Anna Foster about the details from his autobiography, The Chain, including his recovery from addiction and the abuse he suffered as a child.

If you've been affected by anything discussed in this interview then help and resources are available on the 蜜芽传媒 Action Line.

Listen to Today on 蜜芽传媒 Radio 4 and 蜜芽传媒 Sounds: 6-9am on weekdays and 7-9am on Saturdays.