Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A
Top Red Sox prospect Marcelo Mayer collects four hits
San Diegans Marcelo Mayer, Spencer Jones focus on the present as they head to MLB Futures Games - The San Diego Union-Tribune
Marcelo Mayer - Wikipedia
Marcelo Mayer: News, Stats, Bio, & More - NBC Sports - NBC Sports
Red Sox promote top prospect Marcelo Mayer to Double-A
Red Sox promote top prospect Marcelo Mayer to Double-A
What Marcelo Mayer's promotion means for shortstop's future
How did Red Sox top prospect Marcelo Mayer fare in first full pro season? – Blogging the Red Sox
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