Sea Dogs prospect Mayer, 20, focused on pitch selection -- and lobster rolls, Fisher Cats
Red Sox top prospect Marcelo Mayer embracing stop with Sea Dogs
Marcelo Mayer 2022 Topps Bowman Hifi Futures Sub Set Baseball - Norway
Marcelo Mayer Archives
Marcelo Mayer Archives
Marcelo Mayer Goes 3-5 with 4 RBIs!, Boston Red Sox Prospect
Marcelo Mayer Archives
San Diegans Marcelo Mayer, Spencer Jones focus on the present as they head to MLB Futures Games - The San Diego Union-Tribune
Futures Game Archives — College Baseball, MLB Draft, Prospects - Baseball America