Novak Djokovic defeated John Fitzgerald in five - set marathon as Serbia beat USA in Davis Cup tie . France 's home clash with Spain is already whetting the appetite of tennis fans . Serbia reach quarterfinals of the World Group for the first time . European champions Spain will play Serbia in one of the last eight ties .
Novak Djokovic defeated John Fitzgerald in five - set marathon as Serbia beat USA in Davis Cup tie . Serbia reach quarterfinals of the World Group for the first time . European champions Spain will play Serbia in one of the last eight ties .