PRETORIA, SOUTH AFRICA - AUGUST 10: Caster Semenya (c), age 19, relaxes after a training at the High Performance Center at the university of Pretoria on August 10, 2010 in Pretoria, South Africa. Caster Semenya won the 800 meters world championship gold medal in Berlin in 2009 was recently cleared to run after her career was held back due to gender testing. She grew up in a rural village in Limpopo, northern South Africa, and she started running only a few years ago, and quickly appeared from nowhere to the world stage. After being banned for almost a year she was cleared by the IAAF and cleared to compete in July 2010. (Photo by Per-Anders Pettersson/Getty Images)
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