In Brief:
- World No. 49 Mariano Navone ended Novak Djokovic’s undefeated 19-0 first-round US Open record in a 4.5-hour marathon victory.
- Navone claimed 165 total points and converted 6 of 17 break points while firing 9 aces against Djokovic's 10 double faults and 70 unforced errors.
- Battling extreme physical exhaustion, 39-year-old Djokovic suffered leg cramps and stomach distress during the final two sets of the match.
World No. 49 Mariano Navone produced a monumental upset on August 30, 2026, defeating fourth seed Novak Djokovic 7–6(5), 5–7, 4–6, 6–2, 6–1 in the first round of the US Open at Arthur Ashe Stadium. The 4.5-hour contest marked Djokovic's first opening-round exit at Flushing Meadows, ending his 78-match winning streak in Grand Slam first rounds. Despite recovering to take the second and third sets, Djokovic suffered severe cramps and physical distress in the fourth and fifth sets, allowing Navone to secure 6 breaks of serve and clinch a landmark victory.
