Prospect Report: Red Sox's Mayer Caps a Great Week — College Baseball, MLB Draft, Prospects - Baseball America
Marcelo Mayer could make MLB Draft history for Eastlake High - The San Diego Union-Tribune
Red Sox draft top high school shortstop Marcelo Mayer with No. 4 pick
Marcelo Mayer 2021 Bowman Draft Chrome DP Auto - Refractor #CDA-MM Price Guide - Sports Card Investor
Red Sox to promote top prospect Marcelo Mayer to Double-A Portland – Blogging the Red Sox
Boston Red Sox top prospects 2023: Marcelo Mayer leads list
San Diego Top Recruit Marcelo Mayer from Eastlake
How does Tigers' decision to draft Jackson Jobe over Marcelo Mayer look a year later? - The Athletic
Sea Dogs prospect Mayer, 20, focused on pitch selection -- and lobster rolls, Fisher Cats
MLB expert analysis of Red Sox draft pick Marcelo Mayer
Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
Red Sox prospect Marcelo Mayer opens up about season-ending shoulder injury – NBC Sports Boston