MLB: J.D. Martinez hits major league-leading 32nd homer - The Mainichi
Martinez homers 4 times as D'backs beat Dodgers
Red Sox: J.D. Martinez caps outstanding April with multi-homer game
Six is the lucky number for the homer-happy Sox
J.D. Martinez Becomes 18th Player in MLB History to Hit 4 Home Runs in a Game, News, Scores, Highlights, Stats, and Rumors
J.D. Martinez homers, Freddie Freeman sets franchise doubles record as Dodgers beat Nationals - ABC News
J.D. Martinez Hit 4 Home Runs in One Night
Free Agent Targets: The Mariners should pursue JD Martinez
J.D. Martinez hits 2 home runs as NL West champion Dodgers roll past Rodriguez and Tigers, 8-3 – NBC Los Angeles
Martinez delivers in win
J.D. Martinez and the Dodgers make RBI history during loss to Rockies