Football is the most popular school sport.
The most Popular Roman sport is Football. Not American Football, But in the United States it is called Soccer.
In the world? The most popular sport is football. (Or call it soccer, if you are an American.)
Football, not American football, soccer as we call it...
Football (soccer) is the most popular sport among American Latinos.
Football is the most popular sport in Brazil.Soccer.The most popular sport in Brazil is football.
Football (not American football. In the US it would be known as soccer)