2021 MLB Draft: Red Sox first-round pick Marcelo Mayer quickly ditches Yankees allegiance
Marcelo Mayer on his draft ranking, 06/29/2021
Marcelo Mayer Baseball Trading Card Database
Eastlake's Marcelo Mayer: The Six Million Dollar Man
Red Sox first-round draft pick Marcelo Mayer wants to sign 'as soon as possible' - The Boston Globe
Marcelo Mayer Baseball Trading Card Database
Marcelo Mayer Baseball Trading Card Database
Marcelo Mayer Baseball Trading Card Database
Boston Red Sox Top Prospect Voting: Marcelo Mayer is the next big thing - Over the Monster
Marcelo Mayer drafted No. 4 by Red Sox in MLB Draft
What Experts Are Saying About Red Sox Draft Pick Marcelo Mayer - CBS Boston
Marcelo Mayer Baseball Trading Card Database