INDIANAPOLIS — Four reigning World champions and eight 2016 Olympic individual gold medalists will lead 132 athletes on the Team USATF roster for the 2017 IAAF World Championships, held August 4-13 in London, England. Representing the U.S. in the delegation announced Saturday by USA Track & Field are 77 Olympians, including 13 Olympic medalists from 2012 who will return to London Stadium for another chance at the podium. Overall, 39 World Championships and/or Olympic medalists are part of the Team USATF roster.

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