Wayde van Niekerk is the only world champion at the African showpiece in Durban this week, yet the continent's highest-ranking athletics administrator could not remember the 400m star's name yesterday. Confederation of African Athletics president Hamad Kalkaba of Cameroon was asked about the many Kenyan and Ethiopian stars missing from this track and field competition, which takes place from today until Sunday.Of Africa's 12 titleholders from the world championships in Beijing last year, 11 did not make the trip."Some of the best of our continent are here," Kalkaba insisted at a press conference in Durban."[Caster] Semenya is here, [Murielle] Ahoure is here, this young boy from South Africa, 400m," he added, trying to remember Van Niekerk's name.Once reminded by somebody, he continued: "Ja, he is in the competition."Semenya, the 2009 world 800m champion and the only athlete present at yesterday's press conference, said she hoped the championships would help her decide on whether or not to try two events at the Rio Olympics in August."I still have to decide after these championships and after Monaco [Diamond League next month]. We're still working on my speed, strength and recovery."This championship will tell if we do the double," said Semenya, who will run the 1500m, 800m and 4x400m relay in Durban.She might add the 400m or the 1500m to her two-lap race at the Games, although whichever event she chooses comes before the 800m, her best chance of an Olympic medal."It's not easy to run the double at a championship if you haven't done it before."Semenya said she wanted to enjoy the African competition. "It's about having fun, try and entertain people doing what I do best."Dr Harold Adams, the Athletics SA board member who heads the African confederation's anti-doping commission, said for the first time at an African championships, pre-competition blood tests would be conducted and four times more urine tests would be performed.Athletics SA has insisted that its top athletes compete at this event, but its counterparts elsewhere on the continent are clearly not on the same wavelength.Ahoure, the Ivorian sprinter who tops the women's 100m world list so far this year, is probably the highest-profile visitor.There is speculation that Nigerian Blessing Okagbare might still make it if she sorts out visa issues.Other athletes to look out for are men's 800m runners Nigel Amos and 2010 world indoor champion Abubaker Kaki. They run in the men's 800m heats this evening.The programme today includes the first rounds of the men's and women's 100m and 400m, the men's 400m hurdles, the decathlon and the men's 10000m.Van Niekerk will run the 200m later in the event...