Generating both spin and speed

I can do a slow topspin or a fast ball with no spin but I cant seem to combine both without it getting inside the net.

Do i need to close the angle more? my swing need to be more forward?

Hi David,

If the ball is going into the net a lot then try to swing with a slightly higher finish and also brush the ball to generate more topspin.

By using a very similar stroke to your normal topspin and then increasing the speed of your swing you will generate more speed.