Every Olympics features surprises that nobody saw coming and disappointments that leaves everyone scratching their heads.
It is no different in the world's most popular sport—soccer.
A gold medal is not considered as prestigious as a FIFA World Cup Title, but countries still strive to compete at the highest level for their country.
That puts added pressure on the talented teams to perform.
Look for some of these teams to disappoint and not make it to the knockout stages at the 2012 Summer Olympics.