Red Sox top prospect Marcelo Mayer raking in May
Red Sox prospect Marcelo Mayer hits first homer of season for
How did Red Sox top prospect Marcelo Mayer fare in first full pro
Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a
Boston Red Sox top prospect Marcelo Mayer belts first professional
Red Sox prospect Marcelo Mayer's custom cleats at Futures Game - ESPN
Chaim Bloom Assesses Fast Start Of Red Sox Prospect Marcelo Mayer
Red Sox top prospect Marcelo Mayer has best game since High-A call-up
Prospect Report: Red Sox 2023 Imminent Big Leaguers
Marcelo Mayer's HUGE 3-Hit Game!, Boston Red Sox Prospect
Marcelo Mayer among five Red Sox prospects on Baseball America top