Taking out the 'trash': How Mookie Betts revamped his swing at age 30
Same and different, Mookie Betts returns to Fenway for the first time
Why JD Martinez will be a 2023 All-Star for the Dodgers
Dodgers agree to sign free agent DH J.D. Martinez
Red Sox agree to trade Mookie Betts, David Price to Dodgers
Dodgers hitting coach revitalized J.D. Martinez's swing despite lack of MLB credentials - Los Angeles Times
J.D. Martinez maintains passion despite MVP results – Boston Herald
Boston's MVP Duo: Mookie Betts and J.D. Martinez - Last Word On Baseball
Red Sox on J.D. Martinez and Mookie Betts
Red Sox have a leadoff problem with Mookie Betts, Andrew Benintendi