Marcelo Mayer, Boston Red Sox's top prospect, went from 'tall, skinny' to 'wow,' Alex Cora says
McFarling: Top Red Sox prospect always on his grind
How shortstop prospect Marcelo Mayer put himself on the fast track in the Red Sox system - The Boston Globe
Red Sox top prospect Marcelo Mayer is 'eager to take his game to the next level' – Blogging the Red Sox
Marcelo Mayer -- MLB's No. 7 overall prospect -- tied a career high with 4 knocks
What to know about Marcelo Mayer, the Red Sox' first-round draft pick - The Boston Globe
Shortstop Marcelo Mayer makes debut at Hadlock Field in 6-2 Sea Dogs win
Sea Dogs prospect Mayer, 20, focused on pitch selection -- and lobster rolls, Fisher Cats
For Red Sox prospects Nick Yorke and Marcelo Mayer the Futures Game felt inevitable, but for Luis Guerrero it's an unlikely tale - The Boston Globe