Key dates: Aug. 12, gold medal match. Venue: Preliminary matches at Copper Box in Olympic Park. Quarterfinals, semifinals and finals at basketball arena in Olympic Park. Big story: France (above) is looking to join Russia as the only repeat gold medalists in Olympic history. Led by Nikola Karabatic and Thierry Omeyer, they have finished outside the top four just once in the last nine World Championships. Top U.S. prospects: Failed to qualify. Others to watch: France, Germany, Russia. Little-known fact: The U.S. has never won a medal in Olympic competition. And Great Britain is making its Olympic debut.