WATCH: Henin reveals tips for one-handed backhand and slice

An expert at generating racquet head speed and changing pace, seven-time major champion Justine Henin demonstrates the key successes to hitting one-handed topspin backhands and slices.

“When you do a one-handed backhand, you have to close your grip. When you do your slice, you open it much more," says Henin.

As the Belgian later explains, preventing shoulders from tightening up is a critical component to finding a rhythm in a baseline exchange.