Red Sox prospect Marcelo Mayer hits first homer of season for Greenville Drive
Marcelo Mayer, top MLB Draft 2021 pick, may be the best Boston Red Sox prospect - Over the Monster
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2021 MLB Draft: Red Sox first-round pick Marcelo Mayer quickly ditches Yankees allegiance
MLB Twitter explodes with reactions to Red Sox drafting Marcelo Mayer – NBC Sports Boston
How did Red Sox top prospect Marcelo Mayer fare in first full pro season? – Blogging the Red Sox
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First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway welcome - The Boston Globe
Red Sox promote top prospect Marcelo Mayer to Double-A Portland