Team USA's 4x400 team of Isabella Whittaker, Lynna Irby-Jackson, Aaliyah Butler, and Sydney McLaughlin-Levrone left no doubt in the women's 4x400 relay final at World Championships, breaking their own championship record en route to gold #NBCSports #sydneymclaughlinlevrone #teamusa » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 » Watch Live Sports on Peacock: https://peacocktv.smart.link/v82e9dl56 NBC Sports Group serves sports fans 24/7 with premier live events, insightful studio shows, and compelling original programming. NBC Sports is an established leader in the sports media landscape with an unparalleled collection of sports properties that include the Olympics, NFL, Premier League, Big Ten, NASCAR, PGA TOUR, the Kentucky Derby, Tour de France and many more. Subscribe to our channel for the latest sporting news and highlights! Visit NBC Sports: https://www.nbcsports.com Find NBC Sports on Facebook: https://www.facebook.com/NBCSports Follow NBC Sports on Twitter: https://twitter.com/nbcsports Follow NBC Sports on Instagram: https://www.instagram.com/nbcsports/ https://www.nbcsports.com/nfl/sunday-night-football https://nbcsports.com/motors/nascar https://nbcsports.com/soccer/premier-league Sydney anchors Team USA's CHAMPIONSHIP RECORD for women's 4x400 world title in Tokyo | NBC Sports https://www.youtube.com/nbcsports