Sunday Times Chief Sports Writer David Walsh on how two people exposed sport's greatest scandal.

You can find out more about him and his work on Twitter at @DavidWalshST and his new book 'The Russian Affair: The True Story of the Couple who Uncovered the Greatest Sporting Scandal' is available to purchase now at: https://www.amazon.co.uk/Russian-Affair-Uncovered-Greatest-Sporting/dp/1471158152

The Hardy Report is a political news and current affairs podcast, bringing you interviews with a range of activists, campaigners and politicians from across the political spectrum in the United States and the United Kingdom.