Red Sox prospect Marcelo Mayer's custom cleats at Futures Game - ESPN
Marcelo Mayer could make MLB Draft history for Eastlake High - The San Diego Union-Tribune
Boston Red Sox Top Prospects: Triston Casas, Marcelo Mayer, and what makes a number one prospect - Over the Monster
Marcelo Mayer, Red Sox top prospect, on goals for 2023
Jackson Holliday, Marcelo Mayer Highlight All-Star Futures Game Rosters
Marcelo Mayer Stats & Scouting Report — College Baseball, MLB Draft, Prospects - Baseball America
Marcelo Mayer Class of 2021 - Player Profile
Marcelo Mayer News
Red Sox Prospect Marcelo Mayer Placed On Injured List In Double-A
Marcelo Mayer Stats, Fantasy & News
Red Sox Prospect Outlook: Marcelo Mayer Destined For Stardom?
Red Sox Prospect Outlook: Marcelo Mayer Destined For Stardom?