Boston Red Sox Top 51 Prospects
Four Red Sox minor-leaguers among Baseball America's Top 100
2021 MLB Draft Scouting Report: SS Marcelo Mayer - Lookout Landing
Marcelo Mayer's $6.664 million bonus leads San Diego area baseball
Red Sox Prospect Marcelo Mayer Has a Simple Approach and a High
Marcelo Mayer, Marcelo Mayer Profile
2021 MLB Draft Scouting Report: SS Marcelo Mayer - Lookout Landing
Marcelo Mayer already crown jewel of Red Sox farm system
Boston Red Sox draft Marcelo Mayer with fourth overall pick; SS
2021 MLB Draft profile: SS Marcelo Mayer is the Tigers' top target
Red Sox: Marcelo Mayer's prospect ranking shows he was the right