SoxProspects News: Minor Notes: Mayer earns promotion to Portland

Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix

SoxProspects News: Minor Notes: Bello shines in Worcester debut, Mayer placed on injured list

SoxProspects News: July 2022

SoxProspects News: August 2022

The Red Sox Prospects Report - Part Two - Over the Monster

What to expect from the top 10 Red Sox prospects in 2023 – NBC Sports Boston

SoxProspects News: July 2023

SoxProspects News: July 2022

Red Sox top prospect Marcelo Mayer embracing stop with Sea Dogs

Red Sox top prospect Marcelo Mayer promoted to Double-A - CBS Boston

SoxProspects News: June 2023

Red Sox prospects besides Marcelo Mayer impressing in Portland