2021 MLB Draft profile: SS Marcelo Mayer is the Tigers' top target - Bless You Boys
MLB Draft 2021: Marcelo Mayer and Five Other Prospects to Watch - The New York Times
zapfeeds/app/background_services/ranking/data/pos/pos_noun_head.json at master · sysofwan/zapfeeds · GitHub
Marcelo Mayer Stats & Scouting Report — College Baseball, MLB Draft, Prospects - Baseball America
Here's MLB Scouting Report Of Red Sox First-Rounder Marcelo Mayer
2021 MLB Draft profile: SS Marcelo Mayer is the Tigers' top target - Bless You Boys
Marcelo Mayer
2021 MLB Draft Scouting Report: SS Marcelo Mayer - Lookout Landing
Red Sox draft top shortstop prospect Marcelo Mayer at No. 4
Marcelo Mayer Stats & Scouting Report — College Baseball, MLB Draft, Prospects - Baseball America
Red Sox pick high school SS Marcelo Mayer fourth overall in 2021 MLB Draft
The Boston Red Sox select Marcelo Mayer with the 4th overall pick in the 2021 MLB Draft - MLB Daily Dish
Marcelo Mayer - Wikipedia