J.D. Martinez has changed his swing and approach - Bless You Boys
D-backs' J.D. Martinez hits four home runs
What's wrong with J.D. Martinez, and how to fix it - Bless You Boys
How J.D. Martinez changed the culture of hitting within the Red
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How J.D. Martinez transformed an awkward swing into an elite one
How JD Martinez Transformed His Swing (Listen Closely To How He
Fix Dropping Back Shoulder Tilt & Swinging Under Baseball Or
J.D. Martinez Gives Fascinating Insight On How He's Fixing His Swing
Dodgers hitting coach revitalized J.D. Martinez's swing despite
J.D. Martinez Gives Fascinating Insight On How He's Fixing His Swing
A swing flaw ruined the Red Sox' J.D. Martinez in 2020. Here's how