© Licensed to London News Pictures. 28/7/2016. Birmingham, UK.  More than 150 athletes, officials and staff representing USA Track & Field (USATF) are staying in Birmingham at the end of July, ahead of the IAAF World Championships in London. Pictured, USA track star Justin Gatlin joined local Birmingham children taking part in a sports event at a nearby park. Photo credit: Dave Warren/LNP
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