MLB Draft 2021: Marcelo Mayer is a potential pick for the Boston Red Sox - Over the Monster
Top Red Sox prospect Marcelo Mayer collects four hits
San Diegans Marcelo Mayer, Spencer Jones focus on the present as they head to MLB Futures Games - The San Diego Union-Tribune
Red Sox Top prospect Marcelo Mayer may get called-up to Boston
Marcelo Mayer, No. 4 Draft pick, signs with Red Sox
Red Sox promote top prospect Marcelo Mayer to High A Greenville - The Boston Globe
SoxProspects News: Minor Notes: Bello shines in Worcester debut, Mayer placed on injured list
Red Sox draft top high school shortstop Marcelo Mayer with No. 4 pick
Red Sox first-round pick Marcelo Mayer wants to sign 'as soon as possible
MLB Draft First Round: Red Sox Take Marcelo Mayer
Red Sox top prospect Marcelo Mayer promoted to Double-A - CBS Boston
The Athletic on X: With the No. 4 pick in the 2021 MLB Draft, the Boston Red Sox select Marcelo Mayer, a shortstop from Eastlake High School. / X
Prospect Report: Red Sox's Mayer Caps a Great Week — College Baseball, MLB Draft, Prospects - Baseball America
Could Red Sox take exciting shortstop prospect Marcelo Mayer with No. 4 pick in 2021 MLB Draft? – Blogging the Red Sox