Red Sox: Marcelo Mayer surprisingly falls to No. 4 in MLB Draft
Marcelo Mayer Rookie 1st Bowman 2021 Bowman Chrome #BDC-174, Red Sox –
Red Sox' Marcelo Mayer vaults into top five on MLB's Top 100 Prospects list – NBC Sports Boston
What Experts Are Saying About Red Sox Draft Pick Marcelo Mayer - CBS Boston
2021 MLB Draft profile: SS Marcelo Mayer is the Tigers' top target - Bless You Boys
Marcelo Mayer Class of 2021 - Player Profile
Boston Red Sox select Marcelo Mayer from Eastlake HS with the 4th pick of the 2021 MLB Draft
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
Marcelo Mayer continues climb in MLB's Top 100 prospect rankings
Marcelo Mayer Stats & Scouting Report — College Baseball, MLB Draft, Prospects - Baseball America
Red Sox Prospect Outlook: Marcelo Mayer Destined For Stardom?
Marcelo Mayer 2021 Bowman Chrome Franchise Futures #FF-4 - Boston Red Sox
Marcelo Mayer Headed for 2021 MLB Draft - ITG Next