Caster Semenya, the double Olympic champion, has launched a new legal battle against the International Olympic Committee (IOC), denouncing its reinstated sex testing policies as discriminatory and politically motivated. Semenya argues the rules, which ban transgender women and athletes with differences in sex development (DSD) from women’s competitions, undermine women’s dignity and lack scientific basis. She called the decision 'shameful,' emphasizing that no evidence supports claims of male physiological advantages in women’s sports.

The IOC defends the policy as necessary for fairness, citing a 10% performance gap in running events and safety concerns in combat sports.