Non-tennis players usually do not understand the real problem withMcEnroe?s behavior on the tennis court (Nicholas Dawidoff, Aug. 24). His temper tantrums and tirades are often attributed to his perfectionism, his antiestablishmentism or his good guy-bad brat personality. In fact, this was gamesmanship in an attempt to get the psychological advantage over his opponents and, in some cases, the line judges. There are countless examples of his timely tirades to upset the opponent? not to beat the opponent physically through better play. None of the great champs (Laver, Borg, Evert, Navratilova, the Williams sisters, Federer, Nadal) behaved this way; it?s a form of cheating.