FILE - In this Sunday, June 30, 2019 file photo, South Africa's Caster Semenya competes in the women's 800-meter race during the Prefontaine Classic, an IAAF Diamond League athletics meeting, in Stanford, Calif. USA. Two-time Olympic champion Caster Semenya finally lost her long legal battle at Switzerland’s supreme court Tuesday Sept. 8, 2020, against track and field’s rules that limit female runners’ naturally high testosterone levels. (AP Photo/Jeff Chiu, file)

FILE - South Africa's Caster Semenya waits for the start of the 800-meter semifinal race during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil. Caster Semenya finally lost her long legal battle Tuesday, Sept. 8, 2020, against track and field’s rules to limit female runners’ naturally high testosterone levels. (AP Photo/Lee Jin-man, File)

FILE - In this May 3, 2019, file photo, South Africa's Caster Semenya is shown during the Diamond League in Doha, Qatar. Caster Semenya finally lost her long legal battle Tuesday, Sept. 8, 2020, against track and field’s rules to limit female runners’ naturally high testosterone levels. (AP Photo/Kamran Jebreili, File)

FILE - In this Sunday, June 30, 2019 file photo, South Africa's Caster Semenya smiles after winning the women's 800-meter race during the Prefontaine Classic, an IAAF Diamond League athletics meeting, in Stanford, Calif. USA. Two-time Olympic champion Caster Semenya finally lost her long legal battle at Switzerland’s supreme court Tuesday Sept. 8, 2020, against track and field’s rules that limit female runners’ naturally high testosterone levels. (AP Photo/Jeff Chiu, File)