Nothing is more irritating to professional sport fans than the capricious interest of outsiders.
The saloon bar is particularly crowded at the moment. Football commentators must put up with our uneducated views on Portuguese handballs. The racing fraternity at Ascot has endured our hilarious bets on the silliest sounding names and the craning presence of fashion editors. But it is tennis lovers who suffer the worst. There are those who follow tennis and those who want to talk about Anna Kournikova.