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SYDNEY. McLAUGHLIN-LEVRONE.š„
Sydney McLaughlin-Levrone ran an astounding 48.29 seconds in her 400m semifinal at the World Track and Field Championships in Tokyo, the fastest time in the world this year and claiming the American record in the event that Sanya Richards-Ross had held for nearly two decades #NBCSports #sydneymclaughlinlevrone #trackandfield Ā» Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 Ā» Watch Live...