Two-time Olympic champion Caster Semenya has lost an appeal against the restriction of testosterone in female athletes.

Under World Athletics guidelines introduced last year, Semenya would have to take testosterone-reducing drugs in order to compete in races from 400m to a mile.

She has chosen not to do so. Switzerland's Federal Supreme Court dismissed Semenya's appeal.

To discuss, Kieran Cuddihy was joined by Sinead O’Carroll, News Editor with thejournal.ie.