Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
Red Sox top prospect Marcelo Mayer homers in back to back games in
Red Sox promote top prospect Marcelo Mayer to Portland Sea Dogs
How Marcelo Mayer became a scouting impossible dream come true
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These 7 Red Sox prospects are tearing up the minors
Top Red Sox prospect Marcelo Mayer records first Double-A hits
On This Day - Page 67 — MI6 Community
Top Red Sox prospect Marcelo Mayer records first Double-A hits
Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a
Red Sox promote top prospect Marcelo Mayer to Sea Dogs
Red Sox promote top prospect Marcelo Mayer to Sea Dogs
MLB top prospect ranking: Red Sox's Marcelo Mayer ranked just
Red Sox top prospect Marcelo Mayer promoted to Double A Portland
Marcelo Mayer among five Red Sox prospects on Baseball America top
Red Sox top prospect Marcelo Mayer promoted to Double A Portland
Red Sox Prospect Marcelo Mayer Fitting In Since Portland Promotion