By BBC
The South African double Olympic champion, Caster Semenya, has appealed for help funding her legal battle against regulations that require female athletes with high testosterone levels to take medication.
World Athletics – formerly known as the IAAF – barred Semenya from competing in 800m events after she refused to take drugs to reduce her testosterone levels.
She won a long legal battle last year when the European Court of Human Rights ruled that she was the victim of discrimination.
But the Swiss authorities, supported by World Athletics, have appealed and the hearing is due to start in May.
