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Watch Red Sox prospect Marcelo Mayer record his first professional hit
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Top Red Sox prospect Marcelo Mayer promoted to Double A after blistering May - The Athletic
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2021 MLB Draft Scouting Report: SS Marcelo Mayer - Lookout Landing
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Red Sox shut down top prospect Marcelo Mayer due to shoulder injury – NBC Sports Boston
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Marcelo Mayer #1 Red Sox Prospect (2022 Highlights)