Stepping over the service lines during service is not allowed and is termed as foot fault. If the ball bounces in front of or on the second solid line of the service area the player commits a short serve. A long serve occurs when the ball reaches the back wall before bouncing. When a served ball initially hits the front wall and then on the rebound phase comes in contact with both side walls before making a bounce a three wall serve is called. Afterwards you can start working on your forehand and backhand making sure to utilize both sides of the court. You should not forget to hydrate yourself. During a competitive match around two to four quarts of water is lost. Once this is not replaced you will suffer in terms of endurance reduction and energy loss. The effectiveness of this shot lies in its ability to make the ball bounce twice before the opponent can reach it. It is commonly utilized in cases wherein the opponent is located deep in the court. The Z shot is employed in order to confuse and tire out the opposing player. It is achieved by making a hard and high hit at the side wall making the ball hit the front then to the other side wall and finally back to the original side wall. ) Don t keep one knee straight when bending your knees. You need to bend both of them, or else you are just leaning over. Do not move your hips and shoulders in a straight line. They should both be rotating in a circular motion (start with the hips first before the shoulders). Do not hold any tension in your arms. These are when the ball passes the receiving line or after the ball bounces at the back of the short line. The opposing player or team may then counteract the play of their opponents. The common practice is that two serves are allowed which are identified as the first and second serve. During highly competitive tournaments and events the one serve rule takes into effect. Ninety-five percent of these injuries consist of being hit in the eyes by the ball. Interior bleeding in the eye socket, lacerations, bleeding eyelids, abrasions, swollen eyes these are some of the most common eye injuries. Wearing proper eye gear prevents serious injuries to the eye. Be sure to check if your goggles are properly recommended by the American Standard of Testing and Materials, and the Canadian Standards Association.