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The basics of Soccer Formations are discussed in this article. Also, soccer formation selection and how to choose a soccer formation that best fits your soccer team. Soccer formations are discussed for 11v11, 9v9, 8v8, 7v7, 6v6, 5v5, 4v4 and 3v3. Soccer formations are the way teams are organized on the field.
I'd say that soccer requires the most flat-out athleticism being that it's pretty much non stop running. Football on any level does require a certain amount of athleticism but mixes it with skill. Baseball definatly requires more skill: any other sport if you do something 3 out of 10 times, you suck and need more work. Baseball, you do something 3 out of 10 times and you're a hall-of-famer in the making. Anyone kick kick/throw/pass a ball - not everyone can hit a 90mph curve ball.