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Red Sox prospects besides Marcelo Mayer impressing in Portland
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Boston Red Sox prospect watch: Marcelo Mayer erupts : r/redsox
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Top Red Sox prospect Marcelo Mayer shut down for rest of season – Blogging the Red Sox
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Boston Red Sox place Marcelo Mayer on minor-league injured list - Over the Monster
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Red Sox top prospect Marcelo Mayer promoted to Double A Portland after tearing it up throughout the month - The Boston Globe
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Pelham's Rivera thriving in first year as Sox minor league coach, Sports
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Red Sox promote top prospect Marcelo Mayer to Double-A
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The Hottest MLB Prospects to Watch in July
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Red Sox prospect Marcelo Mayer out for rest of 2023
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Boston Red Sox Top 51 Prospects
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Red Sox's Alex Cora Alludes To Marcelo Mayer Potentially Skipping Triple-A - Sports Illustrated Inside The Red Sox