World 800m champion Caster Semenya will return to the venue of her biggest win to date later this month when she competes at Berlin's Olympic Stadium.The South African teenager became world champion in the German city last year.But she was then unable to compete for nine months with the International Association of Athletics Federations (IAAF) demanding she take gender tests.She returned to action in Finland last month, winning two races, and will race at the Isaf meeting on 22 August.Semenya will use the race as part of her build-up to the Commonwealth Games in India in October."It is true that we have two competitions in Europe later this month, but we are not going to rush Caster into going for big meetings," her coach Michael Seme told the Sowetan."She will also compete in South Africa in September."There is another meeting in Cape Town in September where she has been invited to compete. We appreciate the support from South Africa."Semenya came to last year's World Championships as a relative unknown but ran a personal best of one minute 55.45 seconds to take gold.She was subsequently unable to compete as the IAAF looked into her unusually high levels of testosterone but was given the all-clear to compete in July.However, she is hoping to improve on her winning times in Finland of 2:04.22 and 2:02.41.Seme added: "We are happy Caster is doing well on the track after the two brilliant victories in Finland two weeks ago."She is training hard to clock two minutes flat or slightly under as part of the preparations for the Commonwealth Games."Credit: BBC