Prospect Report: Red Sox's Mayer Caps a Great Week — College Baseball, MLB Draft, Prospects - Baseball America
Mr. Baseball 2021: Marcelo Mayer
Red Sox top prospect Marcelo Mayer out with right wrist soreness - The Boston Globe
2023 Preseason Red Sox prospect rankings - by G.G.
San Diego Top Recruit Marcelo Mayer from Eastlake
MLB Draft 2021: A scouting report on Boston Red Sox pick Marcelo Mayer - Over the Monster
2023 MLB Season Preview: American League
MLB The Show 21 CAP - SS Marcelo Mayer
Triston Casas, Marcelo Mayer lead Boston Red Sox 2022 top 15 prospect list; Nick Yorke ranks No. 3
2021 MLB Draft: Mock Draft 3.0 - Baseball Prospect Journal