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Why can no one agree on how good Red Sox SS Marcelo Mayer could be?
Boston Red Sox have 3 top-100 prospects in MLB.com's latest rankings, including Marcelo Mayer (8) and Triston Casas (26)
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Why can no one agree on how good Red Sox SS Marcelo Mayer could be?
Marcelo Mayer continues climb in MLB's Top 100 prospect rankings
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