Someone who will play the game indoors should sue regular duty tennis balls. If the game is done in a clay or grass court, extra duty ones will be needed. If the tournament is in a place in the mountains, this is the time high altitude versions will be brought out. The person can check out what type of ball is used by reading the label on the can. There are four foremost types of courts depending on the kind of material used in the court surface: grass, clay, hard courts, and indoor courts. Whichever of among the several court surfaces the size, shape and markings, however, are standard. Clay Courts Flattened shale, brick or stone, are the materials used for clay courts. The fact of the matter is that ATP is the world s foremost body that governs the men s tennis professional circuit. Believe it or not, ATP Tennis organizes more than sixty tournaments in thirty countries for this current year. ATP Tennis showcases the finest and best athletes that compete in the most enthralling venues all over the world, from Europe to Australia, to Asia and America. Twist the serving shoulder a little so the racquet arm and tossing arms align. 3. Do the ball toss by releasing the ball slightly in front of the shoulder while the racquet is facing downwards and is terminally retracted. Bend your racquet arm elbow to elevate the racquet while the left arm remains pointing at the ball. It can either be the result of becoming old or repetitive use. It can be an outcome of an incomplete curative response in absence of good blood circulation. Consequently access to nutrients and oxygen that is essential for healing is deprived to the sufferer. This results to the deterioration of the tendon that cause the small tears. Lindsay Davenport. Born on June 8, 1976 in Palos Verdes, California, USA, she started playing tennis at the age of 5. She won three Grand Slam tournaments at the end of the 90's She left the world of tennis to recuperate from a back injury. She came back in 2005 with a bang as she was ranked No. 1. Maria Sharapova.