Athletics - Radcliffe warns Semenya verdict could be death of women's sport

FILE PHOTO: Athletics - Diamond League - London Anniversary Games - The London Stadium, London, Britain - July 21, 2018 Former runner Paula Radcliffe before presenting Britain's Nicola Sanders, Marilyn Okoro, Kelly Sotherton and Christine Ohuruogu with their bronze medals for the women's 4x400m relay at the Beijing 2008 Olympic Games REUTERS/David Klein/File Photo

(Reuters) - British former marathon runner Paula Radcliffe believes the verdict of a legal case involving Olympic champion Caster Semenya could open the door for transgender athletes to claim an unfair advantage in women's sport.

The Court of Arbitration for Sport (CAS) is expected to rule this month on whether the International Association of Athletics Federations (IAAF) can bring in rules forcing the South African and female athletes with differences of sexual development (DSD) to take testosterone blockers.