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Konnor Griffin is 19 years old.
He hit an RBI double on the 5th pitch of his MLB career.
The last teenager to debut as a position player for the Pirates was Aramis Ramirez in 1998.
🧵 Let's talk about why Griffin might be the most important prospect in baseball right now:
@JMackey_PGH @AlexJStumpf @_NoahHiles

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