Sydney McLaughlin-Levrone's AMERICAN RECORD 400M obliterates field, seals finals spot | NBC Sports

Sydney McLaughlin-Levrone ran an astounding 48.29 in her 400m semifinal at World 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 » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 » Watch Live Sports on Peacock: https://p...