J.D. Martinez and other big hitters pulling for the return of opposite-field success - The Boston Globe
J.D. Martinez and his BP iPad no longer a laughing matter
Is every pro baseball player capable of hitting a home run? - Quora
A swing flaw ruined the Red Sox' J.D. Martinez in 2020. Here's how he sought to correct it
A swing flaw ruined the Red Sox' J.D. Martinez in 2020. Here's how he sought to correct it
Woops, J.D Martinez confuses some boobs for a wall : r/baseball
J.D. Martinez, Boston Red Sox slugger, takes batting practice at JetBlue Park (Feb. 27, 2018)
JD Martinez Swing Analysis: Fix Dropping Back Shoulder Tilt & Swinging Under Baseball or Softball?
How J.D. Martinez transformed an awkward swing into an elite one - The Boston Globe
A swing flaw ruined the Red Sox' J.D. Martinez in 2020. Here's how he sought to correct it
A swing flaw ruined the Red Sox' J.D. Martinez in 2020. Here's how he sought to correct it