MLB Draft 2021: Marcelo Mayer is a potential pick for the Boston Red Sox - Over the Monster
Boston Red Sox select Marcelo Mayer from Eastlake HS with the 4th pick of the 2021 MLB Draft
SoxProspects News: Notes from the Field: Marcelo Mayer, Blaze Jordan, Niko Kavadas and Nathan Hickey
Which Red Sox prospects are next in line to be called up? – NBC Sports Boston
Red Sox prospects form close relationships in Double-A Portland
Eastlake's Marcelo Mayer: The Six Million Dollar Man
Boston Red Sox Insider Discusses Marcelo Mayer's Major League Timeline - Fastball
2021 MLB Draft: Red Sox first-round pick Marcelo Mayer quickly ditches Yankees allegiance
Updated Top 100 MLB Prospect List: Where Dylan Crews, Other Top 2023 Draft Picks Rank, News, Scores, Highlights, Stats, and Rumors
Red Sox: Marcelo Mayer's prospect ranking shows he was the right draft choice
Red Sox Prospect Outlook: Marcelo Mayer Destined For Stardom?
Mikey Romero, Roman Anthony enter Baseball America's top 10 Red Sox prospects rankings – Blogging the Red Sox