Swiatek loses to Zheng in US Open fourth round

Iga Swiatek's US Open campaign concluded abruptly on Monday, September 7, 2026, as the former world No. 1 suffered a stunning upset loss to qualifier Zheng Qinwen in the fourth round at Arthur Ashe Stadium. Swiatek, the 2022 champion in New York, was eliminated after a dramatic collapse in the opening set, ultimately falling 7-5, 6-3. Swiatek had appeared to be in firm control of the match, racing to a commanding 5-0 lead in the first set. However, Zheng mounted a remarkable comeback, winning seven consecutive games to clinch the set 7-5. This marked the second consecutive match in which Zheng had overcome a significant deficit, having previously come back from 0-5 down in the deciding set against Madison Keys in the third round. The momentum shift continued into the second set. Swiatek took a medical timeout during the second set for treatment to her left thigh. Although she held serve and saved break points, Zheng broke Swiatek's serve and went on to win the set 6-3, securing her place in the quarterfinals. Zheng, currently ranked world No. 121, has experienced a resurgence after an injury layoff that impacted her 2025 season.