In a year of stunning rookie performances, Cuban defector and Reds uber-prospect Aroldis Chapman made his major-league debut on Tuesday, facing three batters in one inning of work. The 22-year-old was electric, hitting 103 mph on the radar gun.

More importantly, because Chapman was called up on August 31st, that means that he will be eligible for the postseason roster. If the Reds make the playoffs, Chapman will have the chance to become the latest in a glorious line of rookie call-ups who have had an impact in the postseason before they had a chance to have an impact in the regular season.

Here is a by-no-means exclusive look at some of the most memorable rookie call-ups who have contributed in the postseason in recent years.

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