J.D. Martinez. Big swing in slow motion.

JD Martinez Hitting Mechanics Slow Motion Baseball Swing - 10000fps MLB home run

J D Martinez Home Run Swing Slow Motion 2020-1(#4)

MLBTheShow] — The Milestone Program brings you J.D. Martinez! This milestone is from hitting 4️⃣ HRs in a single game during his time with the @Dbacks. 😱💪 #MLBTheShow : r/MLBTheShow

How J.D. Martinez transformed an awkward swing into an elite one - The Boston Globe

The other Martinez is the biggest surprise of the first half for the Tigers - Vintage Detroit Collection

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

J.D.Martinez Home Run Swing Slow Motion 2018-1(#27)

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

Red Sox's J.D. Martinez: “Astros-bashing a bit much” : r/baseball