sidespin

(racket sports) the rotational spin applied to the ball, causing it to curve or swerve sideways during flight

Sidespin is a type of spin applied to the ball in racquet sports, such as tennis, table tennis, or squash, where the ball rotates sideways as it moves through the air. This spin causes the ball to curve in the direction of the spin, making it harder for the opponent to predict and return. Sidespin can be used to change the trajectory of the ball and make it bounce in an unusual way, forcing the opponent to adjust their position or timing. It is often used for creating more challenging shots or for strategic placement on the court.