By Leo Canaparo. Tennis coach
As a coach with many years on court, I always say that great strokes are not understood by looking only at the arm, but by seeing the whole body working in harmony. Jannik Sinner’s backhand, one of the most solid and aggressive shots on today’s tour, is a perfect example of this.
At first glance it looks like a clean and simple stroke, but behind it there are very clear and well-executed concepts.
The base: the body before the arm
Sinner sets up with a wide base, bent knees, and low hips. This is no coincidence: his energy comes from the ground up. The legs are the engine of the stroke, not the arms. By loading weight and stability down low, he can accelerate upward with control.
Rotation: load to release
One of the most important details is shoulder rotation. Jannik turns his torso deeply, bringing his chin almost over his front shoulder. This full “coil” allows him to store energy and then release it explosively toward the ball.
The inside-out swing path
His two-handed backhand does not simply move “side to side.” The racket travels from inside to out, first passing close to the body (what we call the slot) and then extending forward. This path creates power, depth, and spin without sacrificing control.
Lag: the secret to speed
A key element is the delay between the forearms and the racket. Sinner creates a large angle (lag) during acceleration, producing tremendous racket-head speed even with a short preparation. That is why he can handle fast balls and take them early.
Compact and lethal
His backswing is short and efficient. There are no wasted movements. This allows him to set up early, strike the ball in front, and redirect the opponent’s pace with pinpoint accuracy.
Conclusion
Sinner’s backhand is not about raw strength; it is about balance, coordination, and timing. Strong legs, full rotation, a modern swing path, and explosive yet controlled acceleration. It is a stroke that teaches an essential lesson: when the body works well, the arm simply follows.