MLB Pipeline on X: Two more hits for Marcelo Mayer today and the
Red Sox sign first-round pick Marcelo Mayer – Blogging the Red Sox
Marcelo Mayer, No. 4 Pick, Belts First Pro Home Run For FCL Red Sox
Red Sox promote top prospect Marcelo Mayer to High A Greenville
On the Clock with the 4th Pick Boston Red Sox 2021 MLB Draft
MLB - There's a new Top 100 Prospects list from MLB
MLB Pipeline on X: No. 4 overall Draft pick Marcelo Mayer walked
How did Red Sox top prospect Marcelo Mayer fare in first full pro
The Athletic on X: With the No. 4 pick in the 2021 MLB Draft, the