Double glass defense: reading the rebound

What this lesson covers

Defending the corner requires identifying whether the ball hits the side glass or the back glass first. When an opponent hits a bandeja or overhead into the corner, the ball trajectory depends on the spin and the initial impact point. A ball hitting the side glass first typically rebounds into a specific area, while a ball hitting the back glass first follows a different path. Players often freeze because they wait for the ball in the center, but moving early to the predicted exit point allows for a cleaner forehand or backhand strike.

To judge the rebound, use your leg as a reference point. If the incoming ball aligns with the outside of your leg, it will likely hit the side glass first. If it passes inside your leg, it will likely hit the back glass first. Only use the double glass when the ball has enough pace and bounce to rebound away from the glass, as low-bouncing balls die quickly and prevent a proper shot. This defensive technique is most effective when opponents are at the net and hitting overheads, as these shots provide more height and bounce than low volleys.