London, UK. 13th Aug, 2017. Change of athlete in 4 times 400 meter final in London at the 2017 IAAF World Championships athletics. Credit: Ulrik Pedersen/Alamy Live News

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Photo credit: © Ulrik Pedersen / Alamy / Afripics
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Keywords: 4, 10, 400, athletics, championship, championships, day, england, field, final, iaaf, keywords, london, men, meter, photography, relay, sport, times, track, uk, world