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MLB

Major League Baseball (MLB) is the highest level of play in professional baseball in the world. More specifically, Major League Baseball ("MLB") refers to the entity that operates North America's two major leagues, the National League and the American League, by means of a joint organizational structure which has existed between them since 1903. On an organizational level, MLB effectively operates as a single "league", and as such it constitutes one of the major professional sports leagues of North America.

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