Serbian tennis ace Novak Djokovic remained on course for his seventh Wimbledon title, ending Dutch wild card Tim van Rijthoven's dream debut with a 6-2, 4-6, 6-1, 6-2 victory on Centre Court to secure a quarterfinal berth at SW19.

The top-seeded Djokovic was challenged by his 25-year-old opponent's powerful serve and forehand, but showed his championship class by playing a superb baseline game to set up a last-eight clash against 10th seed Jannik Sinner of Italy.