Red Sox Top prospect Marcelo Mayer may get called-up to Boston
How did Red Sox top prospect Marcelo Mayer fare in first full pro season? – Blogging the Red Sox
Mr. Baseball 2021: Marcelo Mayer
Red Sox prospect Marcelo Mayer opens up about season-ending shoulder injury – NBC Sports Boston
Marcelo Mayer Stats
Boston Red Sox Top Prospects: FCL Season Review - Over the Monster
MLB Draft 2021: A scouting report on Boston Red Sox pick Marcelo Mayer - Over the Monster
San Diego Top Recruit Marcelo Mayer from Eastlake
Red Sox prospect Marcelo Mayer's custom cleats at Futures Game - ESPN
Boston Red Sox officially sign No. 4 overall pick Marcelo Mayer for $6.64M; shortstop took BP, did infield drills with big-league team Thursday
Marcelo Mayer (@marcelomayer_10) • Instagram photos and videos
For Red Sox prospects Nick Yorke and Marcelo Mayer the Futures Game felt inevitable, but for Luis Guerrero it's an unlikely tale - The Boston Globe
Marcelo Mayer, Red Sox top prospect, on goals for 2023
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 Has a Simple Approach and a High Ceiling