Serving Fault in Tennis

The serve is a fault if:

  1. The server foot faults; see foot fault rules here.
  2. The server misses the ball when trying to hit it.
  3. The ball touches a permanent fixture, singles stick or net post before hitting the ground.
  4. After serving the ball touches the server’s partner, or touches anything the server is wearing or carrying.

It is not a fault if the server tosses the ball in the air and then decides to catch it.