International Olympic Committee president Thomas Bach says he has a "lot of sympathy" for runner Caster Semenya.
South Africa's multiple Olympic and world champion lost her legal case against athletics' world governing body, the IAAF this week.
Semenya had challenged IAAF rules designed to limit testosterone levels in female runners but the Court of Arbitration for Sport (Cas) rejected her appeal.
Bach says he "respects" the decision.
To compete against women, Semenya will have to take medication to reduce testosterone or move up in distance to races over a mile long.
Manchester United rescue dramatic 4-4 draw with Aston Villa
Norris wins in Brazil as Mercedes take constructors' title
Arwa Ali wins 100m silver for UAE at Dakar Youth Olympics
Pollock doubles as England outclass Australia with record win
Alcaraz beats error-prone Shelton to win Paris Masters
