A fan with a dress displaying a Union Jack walks outside the Olympic stadium on July 27, 2012 in London, England.
- [Jeff J Mitchell/AFP/Getty Images]

Great Britain fans dressed in Union Jack clothing walk outside the Olympic stadium on July 27, 2012 in London, England.
- [Jeff J Mitchell/AFP/Getty Images]

Brazil supporters enjoy the atmosphere during the Men's Football first round Group C Match of the London 2012 Olympic Games between Brazil and Egypt, at Millennium Stadium on July 26, 2012 in Cardiff, Wales.
- [Sindy Thomas/AFP/Getty Images]

A Morocco fan during the Men's Football first round Group D Match of the London 2012 Olympic Games between Honduras and Morocco at Hampden Park on July 26, 2012 in Glasgow, Scotland.
- [Stanley Chou/AFP/Getty Images]

A Great Britain supporter poses outside Olympic Stadium on July 27, 2012 at Olympic Park in London, England.
- [Jamie Squire/AFP/Getty Images]

A Great Britain supporter poses outside Olympic Stadium on July 27, 2012 at Olympic Park in London, England.
- [Michael Steele/AFP/Getty Images]

United States fans pose with their national flag outside the Olympic stadium on July 27, 2012 in London, England.
- [Jeff J Mitchell/AFP/Getty Images]

A Mexican supporter is pictured during the men's football match of the London 2012 Olympic Games between Mexico and South Korea at St James' Park in Newcastle-upon-Tyne, on July 26, 2012.
- [/AFP/Getty Images]

Great Britain fans wearing Union Jack tights pose outside the Olympic stadium on July 27, 2012 in London, England.
- [Jeff J Mitchell/AFP/Getty Images]