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

Top Red Sox prospect Marcelo Mayer promoted to Double A after blistering May - The Athletic

Sea Dogs prospect Mayer, 20, focused on pitch selection -- and lobster rolls, Fisher Cats

John Boggs and Associates, Inc (@JBASPORTS) / X

Top Red Sox prospect trying out new position with SS Trevor Story rehabbing

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

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

Red Sox shut down top prospect Marcelo Mayer due to shoulder injury – NBC Sports Boston

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

As Red Sox shut down Marcelo Mayer, rival prospects take off – NBC Sports Boston

Triston Casas, Marcelo Mayer lead Boston Red Sox 2022 top 15 prospect list; Nick Yorke ranks No. 3

SoxProspects.com

Red Sox Notes: Marcelo Mayer to make his Portland Sea Dogs debut, former teammate speaks about his leadership, more system promotions