2021 MLB Draft top high school prospects
Marcelo Mayer Takes To Instagram After Being Drafted By Red Sox
Red Sox Select Marcelo Mayer With No. 4 Pick In 2021 MLB Draft
Red Sox: Marcelo Mayer's prospect ranking shows he was the right draft choice
Boston Red Sox Top Prospect Voting: Marcelo Mayer is the next big thing - Over the Monster
Marcelo Mayer Stats & Scouting Report — College Baseball, MLB Draft, Prospects - Baseball America
2021 MLB Draft Stock Watch: Which Demographics Are Riskiest At No. 1 Overall? — College Baseball, MLB Draft, Prospects - Baseball America
Boston Red Sox select Marcelo Mayer from Eastlake HS with the 4th pick of the 2021 MLB Draft
THE FINAL MLB MOCK DRAFT 4.0
Boston Red Sox prospect Marcelo Mayer ranked No. 22, compared to Corey Seager, Christian Yelich on ESPN list