APPENDIX K ITF RULES OF TENNIS Decision: No. Case 2: Is the server allowed to have one or both feet off the ground? The service is a fault if: 19. SERVICE FAULT Decision: Yes. a.  The server breaks Rules 16, 17 or 18; or b.  The server misses the ball when trying to hit it; or c. The ball served touches a permanent fixture, singles stick or net post  before it hits the ground; or d.  The ball served touches the server or server’s partner, or anything the  server or server’s partner is wearing or carrying. Case 1: After tossing a ball to serve, the server decides not to hit it and catches it  instead. Is this a fault? Decision: No. A player, who tosses the ball and then decides not to hit it, is allowed  to catch the ball with the hand or the racket, or to let the ball bounce. Case 2: During a singles match played on a court with net posts and singles sticks,  the ball served hits a singles stick and then hits the correct service court. Is this a  fault? Decision: Yes. If the first service is a fault, the server shall serve again without delay from  behind the same half of the court from which that fault was served, unless the  service was from the wrong half. The server shall not serve until the receiver is ready. However, the receiver  shall play to the reasonable pace of the server and shall be ready to receive  within a reasonable time of the server being ready. A receiver who attempts to return the service shall be considered as being  ready. If it is demonstrated that the receiver is not ready, the service cannot  be called a fault. 20. SECOND SERVICE 21. WHEN TO SERVE & RECEIVE 453