Association football, commonly known as football or soccer, is a team sport played between two teams of 11 players each. It is widely considered to be the most popular sport in the world. A ball game, it is played on a rectangular grass field, or occasionally on artificial turf, with a goal at each end of the field. The object of the game is to score by manoeuvring the ball into the opposing goal; only the goalkeepers may use their hands or arms to propel the ball in general play. The team th...