Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Gustavo Salgueiro de Almeida Correia also known as Gustavo (born July 7, 1985 in Maceió, Brazil) is a Brazilian footballer currently playing for Agremiação Sportiva Arapiraquense. Association football, commonly known as football or soccer, is a sport played between two teams of eleven players with a spherical ball. At the turn of the 21st century, the game was played by over 250 million players in over 200 countries, making it the world's most popular sport.