Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
Marcelo Mayer is the biggest Red Sox prospect to hit Portland in a decade. Catch him while you can. – The Portland Phoenix
Red Sox's Previously Unheralded Slugger Flying Up Prospect Rankings - Sports Illustrated Inside The Red Sox
Red Sox's Marcelo Mayer On Pace To Become No. 1 Prospect In MLB Next Season - Sports Illustrated Inside The Red Sox
5 things to know about Red Sox shortstop Marcelo Mayer
Red Sox promote top prospect Marcelo Mayer to Sea Dogs
Red Sox top prospect Marcelo Mayer is 'eager to take his game to the next level' – Blogging the Red Sox
Guardians beat Red Sox 5-2 behind Josh Naylor and Eddie Rosario
Aaron Judge headed to injured list for 2nd time this season
Marcelo Mayer, the Red Sox' top prospect, already looks destined for the big leagues - The Boston Globe