Stefanos Tsitsipas upsets Arthur Fils in US Open first round

In a major first-round upset at the 2026 US Open, Stefanos Tsitsipas defeated the 10th seed Arthur Fils in four sets (4-6, 7-6, 6-1, 6-4). Fils, who recently won the Cincinnati Masters 1000, held a commanding lead of one set and a 5-2 advantage in the second set before Tsitsipas mounted a comeback. Following the match, Fils described his performance as ‘unprofessional’ due to a loss of energy and focus during the critical second set.

Tsitsipas, unseeded and ranked 53rd, expressed relief and pride in his fighting spirit, noting that he had to ‘let go of expectations’ to succeed. He also addressed recent rumors regarding Nick Kyrgios, stating he was aware of the situation but surprised by the timing of the public disclosure.

Other notable opening-round results include Felix Auger-Aliassime advancing after a three-hour match against Rinky Hijiata, and Arthur Fery preparing for a challenging debut against Lorenzo Musetti.