Darren Campbell, James Cracknell, Laura Trott and Richard Kruse

In this edition, Olympic gold medallists Darren Campbell and James Cracknell discuss the role of food supplements in athlete's training regimes and the benefits and the risks they offer. Teenage cycling sensation Laura Trott reflects on the two gold medals she brought back from the recent World Track Cycling Championships in Melbourne and looks ahead to this summer's Games in London. Baroness Tanni Grey-Thompson, journalist and former Olympian Matthew Syed and author Helen Jefferson Lenskyj discuss the ancient Games with Ernie Rea on Radio 4’s Beyond Belief and we catch up with fencer Richard Kruse who is set to compete in his third Olympic Games, having just secured his place on team GB for London 2012. Plus the first broadcast interview with talented young sprinter Delano Williams from the Turks and Caicos Islands, a British Overseas Territory. Four months ago the 18 year old didn't have a British passport but could be pulling on a GB vest for the London Olympics this summer.