Sporting perfection, pundit to coach, McGregor's PED fears, Olympic virus

This week's topics of discussion with US Murph - sporting perfection is reality, the Messi of the NBA and how to break your sport.What do flesh-eating viruses tell us about Brazilian society and Rio 2016? Ewan McKenna joins us from Belo Horizonte.And there's Conor McGregor's concerns over Brazilian drug-testing, Jonny Wilkinson's double-jobbing, and how Ken's family defeated the Royal Navy.

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