First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway

Red Sox prospects perform well, show off custom cleats at Futures Game

Red Sox' Marcelo Mayer vaults into top five on MLB's Top 100 Prospects list – NBC Sports Boston

Boston Red Sox top prospect Marcelo Mayer has right wrist soreness but it's not considered serious

Marcelo Mayer wasn't supposed to be there for the Red Sox at No. 4, but the MLB Draft had other plans - The Boston Globe

Red Sox officially sign first round draft pick Marcelo Mayer

Top Red Sox prospect Marcelo Mayer is tearing up the minors and drawing rave reviews - The Boston Globe

Marcelo Mayer is not the only Sox prospect thriving in Portland

Boston Red Sox Promoting Top Prospect to Next Level - Fastball

Marcelo Mayer continues climb in MLB's Top 100 prospect rankings

Red Sox top prospect Marcelo Mayer is 'eager to take his game to the next level' – Blogging the Red Sox

First-round pick Marcelo Mayer signs with Red Sox, takes BP at Fenway (Video)

Red Sox First-Round Pick Marcelo Mayer Planning On Signing Right Away

Marcelo Mayer, Boston Red Sox 2021 first-round pick, walks three times in professional debut in FCL