Red Sox officially sign first round draft pick Marcelo Mayer
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Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
How shortstop prospect Marcelo Mayer put himself on the fast track in the Red Sox system - The Boston Globe
Top Red Sox prospect Marcelo Mayer is tearing up the minors and drawing rave reviews - The Boston Globe
Marcelo Mayer, the Red Sox' top prospect, already looks destined for the big leagues - The Boston Globe
Red Sox promote top prospect Marcelo Mayer to Double-A
Marcelo Mayer, the Red Sox' top prospect, already looks destined for the big leagues - The Boston Globe
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