Marcelo Mayer's HUGE 3-Hit Game!, Boston Red Sox Prospect
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Boston Red Sox Promoting Top Prospect to Next Level - Fastball
Greg Levinsky on LinkedIn: Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade.…
Red Sox Prospect Outlook: Marcelo Mayer Destined For Stardom?
Watch Red Sox prospect Marcelo Mayer record his first professional hit
Red Sox promote top prospect Marcelo Mayer to Double-A Portland
Marcelo Mayer: Breaking News, Rumors & Highlights
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Red Sox's Fastest-Rising Slugger Jumps Marcelo Mayer In Latest Prospect Ranking - Sports Illustrated Inside The Red Sox