Marcelo Mayer, the Red Sox' top prospect, already looks destined for the big leagues - The Boston Globe
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Jackson Holliday, Marcelo Mayer Highlight All-Star Futures Game Rosters
Red Sox top prospect Marcelo Mayer has best game since High-A call-up
Red Sox No. 1 Prospect Marcelo Mayer Promoted to Portland
Red Sox Top prospect Marcelo Mayer may get called-up to Boston
2021 MLB Draft Scouting Report: SS Marcelo Mayer - Lookout Landing
Against the Yankees, prospect Marcelo Mayer offers another glimpse at the future - The Athletic
2021 MLB Draft profile: SS Marcelo Mayer is the Tigers' top target - Bless You Boys