Caster Semenya of South Africa, Charlene Lipsey of the united States and Lynsey Sharp of Great Britain compete in the Women's 800 metres semi finals during day eight of the 16th IAAF World Athletics Championships London 2017

Caster Semenya of South Africa, Charlene Lipsey of the United States and Lynsey Sharp of Great Britain compete in the Women's 800 metres semi finals during day eight of the 16th IAAF World Athletics Championships London 2017 at the London Stadium on August 11, 2017 in London, United Kingdom. 

© 2017 Getty Images/ Andy Lyons