Around 700,000 Olympics tickets are yet to be sold while capacity at a number of football games has been reduced, organisers said. Locog said 250,000 football tickets were on sale while 50,000 tickets are available to buy for other sports at the moment.
In addition, 200,000 football tickets and 200,000 tickets for other sports are due to go on sale after being returned by Olympics committees from around the world.
Organisers said there had been around one million football tickets left but these have been cut in half by reducing capacity at stadiums.
A spokesman for Locog said: “We are planning to reduce capacity across the venues by up to 500,000 tickets across the tournament.