Sir Bradley Wiggins became the first British winner of the Tour de France in 2012

Five-time Olympic champion Sir Bradley Wiggins says he is "indebted" to disgraced cyclist Lance Armstrong, who he has called a "great strength and inspiration" for his help as he battled drug addiction.

Wiggins, who was the first Briton to win the Tour de France in 2012, revealed last month in The Observer

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how he became a cocaine addict in the years after his career.