What happened to J.D. Martinez? Why he's constantly tinkering to become the player he used to be - The Boston Globe
J.D. Martinez is 'completely obsessed with baseball' - The Boston Globe
The Red Sox Add a Slugger of Their Own, Signing J.D. Martinez - The New York Times
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Boston Red Sox reportedly sign JD Martinez for 5 years and $110 million
J.D. Martinez's comments about leaving Red Sox in free agency are depressing – NBC Sports Boston
McAdam: J.D. Martinez worried about losing access to in-game at-bats
Yankees and Red Sox headline MLB action this week - Sports Illustrated
What happened to J.D. Martinez? Why he's constantly tinkering to become the player he used to be - The Boston Globe
Oops! J.D. Martinez accidentally grazes Yankees fans' boobs
Although far apart on talks, Red Sox, J.D. Martinez still connected - The Boston Globe
Franchy Cordero searching for results with Red Sox
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Boston Red Sox Roster: Concern level with J.D. Martinez - Over the Monster
Why Mookie Betts wasn't only reason J.D. Martinez signed with Dodgers - Los Angeles Times