Usain Bolt and the Jamaican 4x100 relay team shatter the world record in London to repeat as Olympic champions #NBCSports #UsainBolt #TrackandField » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub... » Watch Live Sports on NBCSports.com: http://www.nbcsports.com/live 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, NHL, NASCAR, PGA TOUR, the Kentucky Derby, Tour de France, French Open, IndyCar and many more. Subscribe to our channel for the...
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