A shift in the past 15 years has, arguably, transformed the two-hander into the most important live stroke in tennis.

Dominic Thiem is still the most recent player with a one-handed backhand to win a Grand Slam title. After falling short in ...

His height obviously makes bending for low balls difficult, and reaching out to hit balls tailing way from him even tougher. And like a lot of two-handed power baseliners, del Potro feeds on pace.

Today we take a look at two-handed backhands vs. one-handed backhands when you're volleying at the NVZ. These instructors explain which is better in different situations. Instructor Con Garnett shows ...