BMX rider Sarah Walker sets new dreams for future Olympics

New Zealand BMX rider Sarah Walker has missed out on a second consecutive Olympic Games. The London 2012 silver medalist was injured ahead of the 2016 Rio Games and didn't qualify and she won't be riding in Tokyo after 23-year-old national champion Rebecca Petch was chosen ahead of her for New Zealand's sole BMX spot. Walker tells Felicity Reid there's no hard feelings with Petch and she has new Olympic dreams for herself.