J.D. Martinez on his hitting mentality

Calm before the storm is key for J.D. Martinez at the plate – Boston Herald

J.D. Martinez hits four home runs against Dodgers

The coaching duo behind J.D. Martinez's dangerous swing

J.D. Martinez: I'm not trying to hit a [freaking] line drive or a freaking ground ball. - NBC Sports

Swing Kings: The Inside Story of Baseball's Home Run Revolution: Diamond, Jared: 9780062872104: : Books

J.D. Martinez: The Inspiring Journey of a Sports Champion – OOFOS

How J.D. Martinez Rose from Division II Obscurity, MLB Reject to Elite Superstar, News, Scores, Highlights, Stats, and Rumors

MLB playoffs: Boston's Mookie Betts, J.D. Martinez hitting unicorns

Red Sox' J.D. Martinez keeps his eye on the ball, not his stats

Who is J.D. Martinez? – Sun Sentinel

How a failed college baseball player turned the MLB into a hit machine

Fix Dropping Back Shoulder Tilt & Swinging Under Baseball Or Fastpitch Softball? STOP: Hands Drop, Swing Uppercut, & Hitting Well In Cage And Batting Practice But Not In Games - Unlock

St. Louis Cardinals: The curious rise of Jose Martinez - Minor League Ball