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Top Red Sox prospect Marcelo Mayer promoted to Double A after
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Red Sox Top Prospect Marcelo Mayer Heating Up For AA Portland Sea
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marcelo mayer – Blogging the Red Sox
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minor leagues – Blogging the Red Sox
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2021 Boston Red Sox season - Wikipedia
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Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a
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What to know about Marcelo Mayer, the Red Sox' first-round draft
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Red Sox top prospect Marcelo Mayer embracing stop with Sea Dogs
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Portland McClelland Miscellanea