Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
McFarling: Top Red Sox prospect always on his grind
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Red Sox top prospect Marcelo Mayer promoted to Double A Portland
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Red Sox top prospect Marcelo Mayer promoted to Double A Portland
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Red Sox top prospect Marcelo Mayer promoted to Double A Portland
Watch Red Sox Top Prospect Blast 13th Home Run Of Year
Red Sox promote top prospect Marcelo Mayer to Double-A Portland