World number one Novak Djokovic reacted to reaching the French Open quarter-finals on Monday after Lorenzo Musetti retired with an injury. Djokovic avoided a shock fourth-round exit at the French Open after fighting back from two sets down. "I just played under a certain kind of tension," he explained and gave credit to 19-year-old Musetti, who "was in a driving position, definitely, for the first couple sets". The Serbian will face Italian ninth seed Matteo Berrettini next, where he "you need to be at (his) best in order to have a chance to win".