The sex eligibility case of champion runner Caster Semenya has been one of the most contentious and most complex that sports has seen.

Caster Semenya has been listed to compete at next week’s world championships in Eugene, Oregon.

The South African's lawyers said there's been a “violation of her rights” and wants the human rights court to examine the rules. That second case will be central to her appeal to the European Court of Human Rights. Ad“I hope the European court will put an end to the longstanding human rights violations by World Athletics against women athletes," Semenya said in a statement. It's unclear if the human rights court would be able to hear Semenya's case before the delayed Tokyo Olympics, which might be Semenya's last. Previous sports cases that have gone to the European Court of Human Rights have taken years to be decided.