Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a
Can 2019 be the year the Red Sox develop minor league pitching?
MLB Draft First Round: Red Sox Take Marcelo Mayer
Red Sox's Fastest-Rising Slugger Jumps Marcelo Mayer In Latest
MLB expert analysis of Red Sox draft pick Marcelo Mayer
Red Sox promoting No. 1 prospect Marcelo Mayer to Double-A
First-round pick Marcelo Mayer signs with Red Sox, gets a Fenway
Red Sox's Top Prospect Marcelo Mayer Promoted To High-A Greenville
Triston Casas, Bobby Dalbec in Boston Red Sox lineup together
Marcelo Mayer, the Red Sox' top prospect, already looks destined