With a dose of black humour, one could call for the inclusion of the authorities responsible for the protection of children and adults. For punishment has been dished out thousands of times, brutally and with a lot of spin, for nine long days. As this is a matter of tennis balls made out of felt and rubber, no official body need be brought in. At the Swiss Indoors, the Head ATP balls (photo), the same ones in use at Paris-Bercy and the ATP Finals in London, are punished by rackets. The yellow balls only have a short life on the ATP World Tour. After seven or nine games, they are replaced on court. The professional expresses like to run on fresh «ballast». One of the yellow balls weighs exactly 51.4 grams. The balls are not always the friends of the racket artists, for when they miss a shot, the balls are often blamed. During the week at the Basel tournament, 4,500 balls «sacrifice their lives». The balls are imported before their first day in use from Austria. During a day’s training, a professional has the right to use six balls.