Re-signing J.D. Martinez: The case for and (mostly) against - AZ Snake Pit
J.D. Martinez will not opt out of Red Sox contract for 2020
Red Sox double up on Brewers, salvage finale with 7-2 win
J.D. Martinez contract isn't a focus as D-backs fight for playoffs
If NL adds DH, enjoy your last look at J.D. Martinez in a Red Sox uniform – NBC Sports Boston
Martinez declines to opt out of contract, stays with Red Sox
J.D. Martinez says he's unlikely to opt out of contract with Red Sox - The Boston Globe
MLB Rumors: J.D. Martinez not opting out of Boston Red Sox contract - Lone Star Ball
A week after agreement, J.D. Martinez, Red Sox make it official: 'It's been a long process
J.D. Martinez not opting out of contract with Red Sox
J.D. Martinez, Boston Red Sox DH, will not opt out of his contract as expected (report)
What's wrong with J.D. Martinez? And can he break out of his season-long slump? - The Athletic
Mastrodonato: J.D. Martinez needs a hot streak, for the Red Sox and for himself