POLAND, Bydgoszcz, July 24 2016. The USA 400 meter relay team is seen running a victory lap on Sunday. From Tuesday until Sunday the IAAF organised the under 20 World Athletics Championships in Poland. Initially the championship would be held in Russia however due to doping issues the Russian athletes and their federation have been banned by the IAAF. (Photo by Jaap Arriens/NurPhoto via Getty Images)
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