Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a

Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix

Red Sox Prospect Marcelo Mayer Placed On Injured List In Double-A

Teammates Marcelo Mayer, Brainer Bonaci headline All-Red Sox Minor League Team for July - The Athletic

Red Sox promote top prospect Marcelo Mayer to Portland Sea Dogs

Shortstop Marcelo Mayer makes debut at Hadlock Field in 6-2 Sea Dogs win

2023 Boston Red Sox Top 30 Prospects, by Sam Federman

Red Sox top prospect Marcelo Mayer promoted to Double-A - CBS Boston

Red Sox No. 1 Prospect Marcelo Mayer Promoted to Portland

Marcelo Mayer out for remainder of 2023 with shoulder injury

How did Red Sox top prospect Marcelo Mayer fare in first full pro season? – Blogging the Red Sox

Red Sox promote top prospect Marcelo Mayer to Double-A Portland

Red Sox top prospect Marcelo Mayer promoted to Double A Portland after tearing it up throughout the month - The Boston Globe

Marcelo Mayer's three-hit game, 06/04/2023