Boston Red Sox place Marcelo Mayer on minor-league injured list - Over the Monster
Marcelo Mayer - Wikipedia
Marcelo Mayer Signed Red Sox 8x10 Photo (JSA)
Alumni Report: Marcelo Mayer making strong debut; how other San Diegans are faring around the minors - The San Diego Union-Tribune
Boston Red Sox top prospects 2023: Marcelo Mayer leads list
Marcelo Mayer
2021 MLB Draft: Red Sox select No. 1-ranked prospect Mayer, Local Sports
Marcelo Mayer Stats
Marcelo Mayer Headed for 2021 MLB Draft - ITG Next
Red Sox Prospect Marcelo Mayer Placed On Injured List In Double-A
Marcelo Mayer Class of 2021 - Player Profile
Marcelo Mayer reacts to getting drafted fourth overall by Red Sox
Trevor Story praised Red Sox prospect Marcelo Mayer
Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix