September 1st represents the date that rosters expand from 25-men to 40-men. Teams fall into two categories when contemplating who should be called up. Teams going to the post season use these call-ups to give their players especially pitchers a break to keep them fresh for the playoffs.

The second camp are those teams who have all but been eliminated from the playoffs. These teams use the final month of the season to give their rookies playing time. This gives the organization a chance to evaluate players in game situations to decide whether they fit within the team’s plans for next year and beyond.


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