The World Athletics Championship takes place in Moscow on Aug. 10-18, and the event is seen as a dress rehearsal for the 2014 Winter Games in the Black Sea resort of Sochi.

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Semenya has not taken part in an athletics meeting since taking gold at the World Championship in Berlin last August, at which she was asked to undergo a gender test by the International Association of Athletics Federations (IAAF).

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Bolt has now won seven out of eight of the major athletics competitions, only missing out on a World Championship 100m title in South Korea due to a false start.

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By 1990, Larkin was featured on the national stage as the Cincinnati Reds swept the Oakland Athletics in the World Series and won their first world championship since 1976.

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