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Red Sox promote top prospect Marcelo Mayer to Portland Sea Dogs
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Red Sox sign first-round pick Marcelo Mayer to rookie deal
First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway
As Red Sox land four players on top-100 prospect list, a look at
Red Sox promote top prospect Marcelo Mayer to Double-A Portland
MLB Draft 2021: Boston Red Sox take Marcelo Mayer with fourth
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Two years after being drafted, Marcelo Mayer remains on fast track
MLB Draft 2021: Red Sox select prep shortstop Marcelo Mayer with
Boston Red Sox select Marcelo Mayer from Eastlake HS with the 4th