Marcelo Mayer, Boston Red Sox 2021 first-round pick, walks three times in professional debut in FCL
2021 MLB Draft: Red Sox first-round pick Marcelo Mayer quickly ditches Yankees allegiance
First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway welcome - The Boston Globe
Red Sox Sign First-Round Pick Marcelo Mayer - MLB Trade Rumors
Marcelo Mayer, the Red Sox' top prospect, already looks destined for the big leagues - The Boston Globe
BOSTON RED SOX 2021 1st rd pick MARCELO MAYER SIGNED OML BASEBALL ++ JSA
RED SOX 2021 1st rd pick MARCELO MAYER SIGNED BOSTON RED SOX JERSEY WITH JSA +++
Story-book return: In his first professional baseball game in 10 months, Trevor Story blasted a three-run homer for the Portland Sea Dogs - The Boston Globe
Red Sox sign No. 4 MLB Draft pick Marcelo Mayer as shortstop reportedly gets $6.6 million bonus
Marcelo Mayer Signed baseball in very nice condition.
Marcelo Mayer Boston Red Sox 1st Rd Pick Autographed Signed OMLB Baseball JSA
Marcelo Mayer, No. 4 Draft pick, signs with Red Sox
What Experts Are Saying About Red Sox Draft Pick Marcelo Mayer - CBS Boston
Eastlake's Marcelo Mayer: The Six Million Dollar Man
Boston Red Sox prospect Nick Yorke promoted to High-A Greenville after batting .373 with .467 OBP, .608 slugging percentage since June 1 for Salem