Marcelo Mayer Class of 2021 - Player Profile

Top Red Sox prospect Marcelo Mayer promoted to Double A after blistering May - The Athletic

Red Sox sign first-round pick Marcelo Mayer – Blogging the Red Sox

5 things to know about Red Sox shortstop Marcelo Mayer

What to know about Marcelo Mayer, the Red Sox' first-round draft pick - The Boston Globe

Tyler Milliken ⚾️ on X: Red Sox will be sending Marcelo Mayer, Nick Yorke, and Shane Drohan to the Futures Game. 🔥 2 members of the 2020 draft class. 1 from 2021. / X

Red Sox promote top prospect Marcelo Mayer to Double-A Portland

Marcelo Mayer 2021 Bowman Draft Chrome - Gold Refractor #BDC-174 Price Guide - Sports Card Investor

5 things to know about Red Sox shortstop Marcelo Mayer

Red Sox top prospect Marcelo Mayer has arrived in Portland

Red Sox prospects besides Marcelo Mayer impressing in Portland