Turn the racquet.
Only just before contact should the racquet face be exposed to the ball. Flattening out the face will increase surface area and, in turn, air resistance. Rather, the racquet face should be “on edge,” like the side of a coin. Using the eastern grip, Williams lets the racquet frame cut through the air and, if desired, applies spin. “Getting to the edge is going to give you more power,” she says. “You're able to move the ball around the box a lot more, and you get the spin, which gives you control.”