“Yet although as a tennis player Mr Djokovic’s vaccine hesitancy is exceptional, as a Serb it is not. Despite there being little shortage of vaccines in Serbia, where he is from, just 45% of adults have been double-jabbed. Meanwhile, the country has been battered by the disease. According to The Economist‘s tracker Serbia suffered the second-highest number of excess deaths in the world per head of population. With as much clout off the court as on it, Mr Djokovic’s public hesitation to take a life-saving vaccine may well be costing the lives of his countrymen.”