Novak Djokovic, aiming for his 25th Grand Slam title, overcame American teenager Learner Tien in the US Open first round despite a foot blister requiring a medical timeout. The Serbian secured a 6-1, 7-6 (7/3), 6-2 victory, acknowledging rustiness but praising his resilience. Post navigation Meet Learner Tien: The 19-year-old American faced Novak Djokovic in the U.S. Open first round Surreal! Athlete completes 35km race, gets surprise proposal – Watch