— Usain Bolt got his third gold medal of London as Jamaica won the 4x100 relay, capping his perfect 3-for-3 Olympics with a world record.
Jamaica's Usain Bolt after his team posted a world-record time of 36.84 seconds in the 4x100 relay Saturday night.
— Usain Bolt got his third gold medal of London as Jamaica won the 4x100 relay, capping his perfect 3-for-3 Olympics with a world record.
