Caster Semenya has expressed her disappointment at a press release issued by the IAAF today in which the world athletics governing body disclosed the names of expert witnesses it plans to call before the Court of Arbitration for Sport (CAS).

Semenya, the women’s world 800 metres champion, arrived at the sports arrived at the Sports Tribunal in Lussane today to challenge proposed rules that could force her to lower her testosterone levels.

In a statement on its official website the IAAF revealed the names of experts supporting its Eligibility Regulations for athletes with disorder of sexual differentiation (DSD).