Marcelo Mayer - Wikipedia
Revisiting The 2021 Draft and its Top Prospects, by Mason McRae
Red Sox Minor Lines 5/15: Marcelo Mayer Goes Deep Again - Over the Monster
2023 Boston Red Sox Top 30 Prospects, by Sam Federman
Marcelo Mayer is killing it in the minors! : r/redsox
Marcelo Mayer is rising in ESPN's rankings of top MLB prospects
Red Sox August all-minors team: Marcelo Mayer shut down, Kyle Teel arrives with a bang - The Athletic
Marcelo Mayer is killing it in the minors! : r/redsox
Marcelo Mayer, Boston Red Sox's top prospect, went from 'tall, skinny' to 'wow,' Alex Cora says
The Red Sox are not a great team. But the pieces are starting to fall into place, starting with Brayan Bello. - The Boston Globe
Marcelo Mayer is killing it in the minors! : r/redsox