Marcelo Mayer already crown jewel of Red Sox farm system, Sports
Marcelo Mayer, the Red Sox' top prospect, already looks destined for the big leagues - The Boston Globe
Mayer, Leiter, Rocker among top prospects for MLB draft
MLB Draft 2021: Scattered thoughts on the Boston Red Sox draft class, led by Marcelo Mayer - Over the Monster
Marcelo Mayer drafted No. 4 by Red Sox in MLB Draft
Red Sox officially sign first round draft pick Marcelo Mayer
MLB Draft 2021: Marcelo Mayer is a potential pick for the Boston Red Sox - Over the Monster
Red Sox promote top prospect Marcelo Mayer to Portland Sea Dogs
Red Sox sign first-round pick Marcelo Mayer and glimpse their future - The Athletic
Michael's thoughts on the the D-backs top selection of the 2021 MLB Draft - AZ Snake Pit
Red Sox's Marcelo Mayer hits first pro home run
Eastlake's Marcelo Mayer selected No. 4 overall by Boston Red Sox in 2021 MLB Draft - Sports Illustrated High School News, Analysis and More