In this week’s Sport: Two-time Tour de France winner Chris Froome talks exclusively about riding clean, winning more Grand Tours and his Olympic medal hopes for Rio 2016 | On the eve of the Rugby World Cup, Sir Clive Woodward, Martin Johnson and Jonny Wilkinson reflect on the lessons of 2003 and consider the challenge facing the class of 2015 | Ahead of his final fight, we ask: how will Floyd Mayweather really be remembered? | Downhill mountain bike World Cup and World Championships winner Rachel Atherton reflects on her near-unbeaten season | Bournemouth striker Callum Wilson on his journey from the Conference to the Premier League | Plus: Para-triathlete Lewis Edwards bears all in Sport Uncovered