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In this video, we would like to introduce the rules of tennis serve.
A serve in tennis is a shot to start a point. For any serve, the server stands behind the baseline without touching it.

For the first point of any game, the server stands to the right of the center point of the baseline. A good serve occurs when a legally delivered ball lands in the cross-court service box.

A foot fault takes place when the server assumes an illegal position while serving. The server's feet may touch only the ground behind the baseline, between the extensions of the center line and the sideline.
The server's feet must not touch the baseline or the extension of the center line or sideline at any time before the ball is struck.
Running or walking while serving is not allowed, however jumping is permitted.

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