Collin Morikawa explains how to keep your hands and body in sync
Drill by Collin Morikawa (PGA TOUR)

Why this drill works
Arms drifting away from the torso make the backswing steep and off plane, forcing compensations in the downswing. The under-armpit object gives instant feedback the moment the lead arm separates, training the arms and chest to move in sync so the club stays on plane back and through: the same connection feedback loop a major champion uses to keep his swing calibrated.
How to do it
- 1
Tuck a glove, headcover, or folded lanyard under the lead armpit at address (Morikawa uses this exact drill on tour to stop his arms drifting away from his torso).
- 2
Start with short swings: keep the object trapped until the club is halfway back, checking the arms and chest are turning as one unit.
- 3
Progress to three-quarter swings, then full swings to the top, still keeping the object pinned; if it drops, the arms have separated from the body's turn.
- 4
Hit small shots with the object in place, letting the body rotation, not independent arm lift, control the club going back and coming down.


