A cluster of talent at Double A Portland bodes well for the Red Sox' future - The Boston Globe
Red Sox prospect Marcelo Mayer out for rest of 2023
Red Sox Prospect Report: Marcelo Mayer Showing More Power
Red Sox have 2 'dudes' as top prospects, including 'freak of an athlete'
Red Sox promote top prospect Marcelo Mayer to Sea Dogs
Red Sox Minor Lines: Injury Scares for Marcelo Mayer and Miguel Bleis - Over the Monster
San Diegans Marcelo Mayer, Spencer Jones focus on the present as they head to MLB Futures Games - The San Diego Union-Tribune
Red Sox Prospect Outlook: Marcelo Mayer Destined For Stardom?
Red Sox June all-minors team: Ceddanne Rafaela up to WooSox after torrid stretch - The Athletic