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How shortstop prospect Marcelo Mayer put himself on the fast track in the Red Sox system - The Boston Globe
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Red Sox promote top prospect Marcelo Mayer to Sea Dogs
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Top Red Sox prospect Marcelo Mayer is tearing up the minors and drawing rave reviews - The Boston Globe
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Red Sox promote top prospect Marcelo Mayer to High A Greenville - The Boston Globe
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RED SOX 2021 1st rd pick MARCELO MAYER SIGNED BOSTON RED SOX JERSEY WITH JSA +++
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Sea Dogs prospect Mayer, 20, focused on pitch selection -- and lobster rolls, Fisher Cats
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Autograph Marcelo Mayer Salem Red Sox Specialty Jersey & Bobblehead Pack
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Red Sox Minor League roundup June 4
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2022 season – Page 13 – Blogging the Red Sox
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Marcelo Mayer autographed card sells for $132,000