For a lot of people in the United States and other parts of the world who do not watch soccer on a weekly basis, the United States vs. Ghana game, that took place June 26, 2010, may have been a bit confusing. The rules of the 2010 World Cup are pretty easy to understand once viewers are aware of them.
During Extra time, which is overtime, in a world cup match there are three important things to understand.
The first thing to know is that after 90 minutes of play, the length of a soccer match, if both teams are tied up, then the teams will play for two full 15 minute periods. If one team is ahead in the first 15 minutes, then the second 15 minute period may not be necessary.