Grading the Performance of Top 10 MLB Prospects Called Up This September

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Grading the Performance of Top 10 MLB Prospects Called Up This September
Jason Arnold/Getty Images

With the postseason gradually winding down and only a handful of prospects still playing, it’s time to reflect upon and grade some of the top rookie performances from the final month of the season.

While there were countless big league promotions on Sept. 1—when the active major league roster expanded from 25 to 40 players—only a select group of those players were considered legitimate prospects.

And given those players’ impressive conclusion to the season, respectively, don’t be surprised if a majority of them are featured on their team’s Opening Day roster.

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