First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway welcome - The Boston Globe
Boston Red Sox sign first round pick Marcelo Mayer to slot deal - Over the Monster
Boston Red Sox Promoting Top Prospect to Next Level - Fastball
Top Red Sox prospect Marcelo Mayer is tearing up the minors and drawing rave reviews - The Boston Globe
First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway welcome - The Boston Globe
Red Sox to promote top prospect Marcelo Mayer to Double-A Portland on Tuesday
Boston Red Sox minor league players - Wikipedia
2022 Fantasy Baseball: Midseason top 30 prospect rankings led by Corbin Carroll, Gunnar Henderson
Top Red Sox prospect Marcelo Mayer promoted to Double A after blistering May - The Athletic
5 things to know about Red Sox shortstop Marcelo Mayer
Red Sox Top prospect Marcelo Mayer may get called-up to Boston
Red Sox's Top Prospect Marcelo Mayer Promoted To High-A Greenville
Top 50 MLB prospects: Jackson Holliday, Paul Skenes top Jim Bowden's rankings - The Athletic
Red Sox top prospect Marcelo Mayer promoted to Double A Portland after tearing it up throughout the month - The Boston Globe
Predicting Red Sox top prospect Marcelo Mayer's timeline to the majors