Caster Semenya will not defend her world 800m title in Doha in September after a Swiss judge overruled a temporary suspension on the IAAF's controversial testosterone-curbing rules, her representatives said Tuesday.
The ruling means the 28-year-old can no longer compete in events between the 400m and mile, as she did in June and July. The World Championships are scheduled between September 28-october 6 in the Qatari capital.