On our latest Planet Sport programme we catch up with reigning Olympic long jump champion Tianna Bartoletta (above) from the USA to find out how she first got into the sport and what she is doing today to encourage and inspire a new generation of young athletes. We also talk to British 100 metres hurdler and 2013 World Championship bronze medallist Tiffany Porter about her sport, ambition and faith.
Listen to the interviews below: