Red Sox top prospect Marcelo Mayer has arrived in Portland
Red Sox top prospect enjoying time in Portland
Red Sox prospect Marcelo Mayer posts first multi-homer game of
Red Sox to promote top prospect Marcelo Mayer to Double-A Portland
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How did Red Sox prospects Marcelo Mayer, Nick Yorke, and Luis
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Marcelo Mayer has arrived
Red Sox promote top prospect Marcelo Mayer to Sea Dogs
Red Sox prospects form close relationships in Double-A Portland