MLB Draft 2021: Marcelo Mayer and Five Other Prospects to Watch - The New York Times

MLB Draft 2021: Teams with Best Overall Results and Grades, News, Scores, Highlights, Stats, and Rumors

5 names for Texas Rangers to consider with the fourth overall pick in 2023 MLB draft

Red Sox Prospect Outlook: Marcelo Mayer Destined For Stardom?

2021 MLB Draft: Mock Draft 3.0 - Baseball Prospect Journal

The wait is over, Sea Dogs fans. The Marcelo Mayer era has arrived

Mayer, Yoshida headline 5 Red Sox prospects on BA's top 100 list

Against the Yankees, prospect Marcelo Mayer offers another glimpse at the future - The Athletic

2021 MLB Draft: Top 300

Boston Red Sox select Marcelo Mayer from Eastlake HS with the 4th pick of the 2021 MLB Draft

Red Sox's 2023 breakout prospect candidate joins Marcelo Mayer, Blaze Jordan at Greenville

2023 MLB Draft: The Top 614 Prospects - Future Stars Series

San Diegans Marcelo Mayer, Spencer Jones focus on the present as they head to MLB Futures Games - The San Diego Union-Tribune

MLB Draft 2021: Marcelo Mayer and Five Other Prospects to Watch - The New York Times

The Pitchers Who Know How Kumar Rocker Feels - The New York Times

MLB mock Draft first 10 picks for 2021