Divisions are often organised in such a way that teams or players[?] in any given division are comparably adept at their chosen sport, such that matches are exciting[?]. Often this is achieved by ensuring that the victors of one division are promoted[?] to some 'higher' division upon achieving their divisional title, swapping places with the bottom-placed team in that higher league. Variations on this idea exist in the form of playoffs[?].
A league is such a set of divisions (or can describe an individual division within a league) in which teams can move between differently ranked divisions.
In soccer, each nation has its own football league.
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