JEFFREY BROWN: And finally tonight: The London Olympic Games are winding down heading into the final weekend. Along the way, there have been -- it's been filled with thrills and created a good bit of sports history.
Tomorrow, Jamaica's Usain Bolt gets yet another chance to add to his fame in the men's 4-by-100 relay. His victory yesterday in the 200 meters made him the only man ever to win both the 100 and 200 in back-to-back Olympics.
NARRATOR: And now he is pulling away. It's going to be Usain Bolt!
JEFFREY BROWN: For the U.S. women's soccer team, the work is over, after beating Japan yesterday to win gold in a third consecutive Olympics.
And the Games have been full of other big moments, especially for the British hosts. They have reveled in hometown heroics, from cycling to tennis, where Andy Murray beat Roger Federer for the gold medal, avenging his loss at Wimbledon last month.
Chinese athletes have dazzled in a long list of sports, from diving to swimming to gymnastics and more. And Chinese hurdler Liu Xiang provided one of the game's most dramatic scenes, hopping to the finish line after he struck a hurdle and ruptured his Achilles' tendon.
Among much else, the London Games will also be remembered for U.S. swimmer Michael Phelps, who became the all-time Olympic medal leader with 22, two Saudi Arabian athletes who were the first women to represent their country, and South African sprinter Oscar Pistorius, first double-amputee runner ever to compete in the Olympics.