J.D. Martinez says he's 'probably not' opting out of his contract

The Red Sox Add a Slugger of Their Own, Signing J.D. Martinez - The New York Times

Detroit Tigers News: J.D. Martinez is finally a Boston Red Sox - Bless You Boys

J.D. Martinez not opting out of contract with Red Sox - The Boston Globe

Red Sox DH J.D. Martinez opts in for 2021 season

J.D. Martinez contract with Red Sox still looks like a win-win

Reports: J.D. Martinez will opt in to his contract with the Boston Red Sox – NBC Sports Chicago

J.D. Martinez 'right in the middle' about opt-out decision

McCosky: Probably no losers in J.D. Martinez negotiations

JD Martinez will not opt out of his contract with the Red Sox, per report - MLB Daily Dish

JD Martinez's slump indicates he made a mistake not opting out of Red Sox contract last year

Red Sox DH J.D. Martinez decides to remain in Boston

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