Novak Djokovic produced an unforgettable performance, wiping the smile off Richard Gasquet's face, and Roger Federer also strolled into the French Open quarter-finals on Sunday. Holder Francesca Schiavone promised that there was more to come after beating Serbian 10th seed Jelena Jankovic, 6-3 2-6 6-4, to book her place in the quarter-finals.