Watch the Japense call of the men's 4x100m relay in which Usain Bolt earned his ninth career Olympic gold as Jamaica took the race and the United States were disqualified for an early baton exchange.
Copyright Rio2016
Watch the Japense call of the men's 4x100m relay in which Usain Bolt earned his ninth career Olympic gold as Jamaica took the race and the United States were disqualified for an early baton exchange.