This week we meet two Olympic champions about their plans and hopes for the Games this summer in Rio. Kenya's 1500m world champion, Asbel Kiprop, won gold in Beijing in 2008 while Christian Taylor from the United States is the reigning world and Olympic triple jump champion. And we continue our series journeying through the Games of the modern Olympic era as we come to the 1992 Games in Barcelona and hear from winner of the women's 400m hurdles, Sally Gunnell.