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Established big league stars make the big dollars and generally represent the face of their respective franchises, but young up-and-coming players are often the most exciting guys on the roster.

Cost-effective players with dynamic skill sets can make a real difference for teams that are looking to make a run at a title, and there's more high-end young talent around the league right now than any time in recent memory.

So with that in mind, what follows is a position-by-position look at Major League Baseball's all-under-25 team.

Some specifics before we begin: