Boston Red Sox view Marcelo Mayer as an 'impact shortstop' as he continues to grow; 'He moves with such loose, comfortable action'
Red Sox year in review: A timeline of how a wild 2021 unfolded
Boston Red Sox Top Prospects
MLB top prospect ranking: Red Sox's Marcelo Mayer ranked just outside top 10
MLB Draft Top 500 Prospects. With the MLB Draft only a few days away…, by Tieran Alexander
Watch Red Sox prospect Marcelo Mayer record his first professional hit
Coveted prep shortstop Marcelo Mayer a two-way star atop Detroit Tigers' wish list
Marcelo Mayer, Boston Red Sox 2021 first-round pick, walks three times in professional debut in FCL
How Marcelo Mayer became a scouting impossible dream come true - The Boston Globe
By all reports, Mayer shines