What happened to J.D. Martinez? Why he's constantly tinkering to become the player he used to be - The Boston Globe

Are these the last days of J.D. Martinez with the Red Sox? - The

J.D. Martinez and other big hitters pulling for the return of

How the Houston Astros Revolutionized Player Development - The Ringer

J.D. Martinez has gotten back into the swing with Dodgers - The

J.D. Martinez Goes Back to his Hitting Roots in Deal With Dodgers

McAdam: J.D. Martinez worried about losing access to in-game at-bats

Book: Red Sox' success can be traced in part to devotion to high

J.D. Martinez continues torrid start for Boston Red Sox with second

J.D. Martinez is 'completely obsessed with baseball' - The Boston

MORE