PARIS, Sept 10, 2025 (BSS/AFP) - Noah Lyles, Armand Duplantis and Faith Kipyegon headline the world championships in Tokyo but it is an opportunity for new stars to emerge and add a freshness to the established order. AFP Sport picks out five prospects who could achieve just that: A loaded 800 metres with Olympic champion Emmanuel Wanyonyi of Kenya and Canada's defending title holder Marco Arop makes it one of the standout races -- the American teenager adds even more spice to it. At 16 and 272 days when he runs in his heat he will be the youngest athlete to compete for the USA at a world championships. Lutkenhaus earned his ticket with a brilliant effort to finish second...