Marcelo Mayer's $6.664 million bonus leads San Diego area baseball signings - The San Diego Union-Tribune
paul toboni – Page 2 – Blogging the Red Sox
First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway welcome - The Boston Globe
First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway welcome - The Boston Globe
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Alumni Report: Marcelo Mayer making strong debut; how other San Diegans are faring around the minors - The San Diego Union-Tribune
Marcelo Mayer launches go-ahead home run for Red Sox' High-A affiliate
First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway welcome - The Boston Globe
Prospect Spotlight: Marcelo Mayer, SS, Boston Red Sox - The Dynasty Guru
Rookie Card Greenville Drive - Boston Red Sox Baseball Card
2023 South Atlantic League SAL Top Prospects Marcelo Mayer
paul toboni – Page 2 – Blogging the Red Sox
Eastlake's Marcelo Mayer: The Six Million Dollar Man