All-Star slugger J.D. Martinez opts in to 2 more seasons with Red Sox
J.D. Martinez, Dodgers agree to one-year, $10 million contract - The Boston Globe
Red Sox star J.D. Martinez's future in Boston gets a pivotal update
J.D. Martinez, Boston Red Sox DH: 'I honestly feel I would not want to be a free agent during this time' after shortened season with small sample size
Red Sox haven't discussed contract extension with J.D. Martinez
Red Sox keep moving closer to unthinkable Mookie Betts trade
2021 MLB Season Preview: Team-by-Team Capsules - The New York Times
Red Sox notes: J.D. Martinez off to typical slow start
J.D._Martinez
Red Sox not planning to extend a qualifying offer to J.D. Martinez
J.D. Martinez makes Red Sox history despite struggle-filled season