Red Sox No. 1 Prospect Marcelo Mayer Promoted to Portland
Boston Red Sox Minor League roundup May 7, 2023
Red Sox prospect Marcelo Mayer out for rest of 2023
Red Sox Q&A with Keith Law: Marcelo Mayer, Miguel Bleis and more prospects - The Athletic
For Red Sox prospects Nick Yorke and Marcelo Mayer the Futures Game felt inevitable, but for Luis Guerrero it's an unlikely tale - The Boston Globe
Top Sea Dogs prospects learn from recent experiences
Sea Dogs announce 2023 team award winners
Marcelo Mayer among three Red Sox prospects named to roster for All-Star Futures Game - The Boston Globe
marcelo mayer – Blogging the Red Sox
Portland Sea Dogs McClelland Miscellanea
Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
2023 Boston Red Sox Top 30 Prospects, by Sam Federman