Marcelo Mayer, the Red Sox' top prospect, already looks destined
Mr. Baseball 2021: Marcelo Mayer
Marcelo Mayer: 'Main goal is to win a World Series with the Red Sox
Red Sox finally have a pitcher on a top 100 prospect list
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Red Sox top prospect Marcelo Mayer has arrived in Portland
Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
Marcelo Mayer, the Red Sox' top prospect, already looks destined for the big leagues - The Boston Globe
Keith Law's AL East draft recap: Yankees, Red Sox (Marcelo Mayer!), Orioles, Blue Jays and Rays breakdowns - The Athletic
Boston Red Sox Top Prospect Voting: Marcelo Mayer is the next big thing - Over the Monster
Triston Casas, Bobby Dalbec in Boston Red Sox lineup together? Future looks bright at first base
Marcelo Mayer is not the only Red Sox prospect turning heads up in Portland
Boston Red Sox Top Prospects: Oh, hello there Triston - Over the Monster
Red Sox top prospect Marcelo Mayer is 'eager to take his game to the next level' – Blogging the Red Sox
Prospect Report: Red Sox 2023 Imminent Big Leaguers
Red Sox Prospect Outlook: Marcelo Mayer Destined For Stardom?