TO GO WITH AFP STORY BY FRAN BLANDY AND AILEEN KIMUTAI
Kenya's Olympic 800m bronze medalist Margaret Nyairera Wambui, who has faced questions over her testosterone levels, speaks during interview with AFP in Ngong, a suburb of Nairobi, Kenya, on May 14, 2019. - The 24-year-old is one of several star female athletes affected by an International Association of Athletics Federations ruling this month that requires women with high levels of testosterone to take medication to suppress it. (Photo by Yasuyoshi CHIBA / AFP)