Thrilling Upsets and Dominant Victories Mark Day Four at the U.S. Open

The fourth day of the U.S. Open saw notable performances and unexpected developments. Alex de Minaur and Jessica Pegula advanced to the third round, while Iga Swiatek and Jannik Sinner cruised past their opponents. Elena Rybakina withdrew due to injury, and several lower seeds, including Jordan Thomson, caused upsets.

The fourth day of the U.S. Open at Flushing Meadows brought a mix of thrilling upsets and dominant victories. Australian 10th seed Alex de Minaur overcame Finland's Otto Virtanen in straight sets, while sixth seed Jessica Pegula advanced by defeating fellow American Sofia Kenin.

Top seed Iga Swiatek had an easy win over Japan's Ena Shibahara, securing a 6-0, 6-1 victory in just over an hour. Conversely, Elena Rybakina withdrew from the tournament due to injury, which allowed French qualifier Jessika Ponchet to advance.

Jannik Sinner triumphed over American Alex Michelsen, with the Italian receiving strong support from the crowd. Other notable matches included Jordan Thomson's victory over Hubert Hurkacz and Tomas Machac's win against Sebastian Korda, despite Korda battling an elbow injury throughout the match.

(With inputs from agencies.)