Peaty calls for lifetime drug bans

World champion Adam Peaty tells BBC Sport's Nick Hope that athletes who deliberately take restricted substances to enhance their performance should be banned for life, following allegations in The Times that widespread doping programmes are in operation in Russia and China.

Learn more about Adam Peaty's attempt to become Great Britain's first male Olympic swimming champion since 1988 in BBC One's Saturday Sportsday programme at 12:50pm this weekend.

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