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Jane Hill stands in for Naga Munchetty on Sunday Morning Live this week.

Russian competitors are facing a complete ban from the Olympic and Paralympic Games - with less than two weeks before events begin.听 Track and field athletes are already ruled out of Rio after revelations of state-sponsored doping to improve performance. The International Olympic Committee (IOC) is considering making that exclusion apply to other sports. This follows the findings of the McLaren report, which this week said urine samples of Russian competitors were manipulated across the "vast majority" of summer and winter Olympic sports from late 2011 to August 2015. As doping techniques become increasingly sophisticated, are sports administrators fighting a losing battle?听 Is allowing doping in sport the only way to create a truly level playing field?听 Or is the crackdown on drug takers enough to preserve the integrity of the competition? Olympic gold medallist Tessa Sanderson joins the debate:听Can the Olympics be free of cheats?听

Also in the programme, Singer best known as part of Destiny's Child, talks to Nikki Bedi about her career, her faith and the importance of Gospel in the history of music. The Croydon Gospel Choir perform a Gospel classic in the studio.

And:听Is it the government's job to tackle obesity?听Theresa May has decided to delay the publication of the Government's child anti-obesity strategy till the autumn. The decision comes despite pleas from NHS chief Simon Stevens and TV chef Jamie Oliver for the new Prime Minister to act swiftly to tackle the growing crisis. The charity Action on Sugar warns that obesity 'will bankrupt the NHS unless something radical is done'.听 So, as people pile on the pounds, who is responsible for the health problems it creates - the Government or the individual?听 Anthony Whitington explains how he and his brother Ian tackled their father Geoff's poor lifestyle and made a documentary for the 主播大秀 about it - 'Fixing Dad'

This Sunday, the Catholic Church celebrates World Youth Day an opportunity "to share with the whole world the hope of many young people who want to commit themselves to Christ and others".听 But is Christianity still relevant to the current generation?听 With dwindling congregations, a new book That Was the Church That Was: How the Church of England Lost the English People outlines the growing gulf between the Church and the faithful.听 One of the book's co-authors, Linda Woodhead,听 joins the panel to discuss: Is the church still relevant?

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