Jessica Pegula Upsets World No. 1 Iga Swiatek to Reach U.S. Open Semi-finals

American tennis player Jessica Pegula defeated world number one Iga Swiatek 6-2, 6-4 to reach her first Grand Slam semi-final at the U.S. Open. Pegula's victory marks her biggest career win, as she overcame Swiatek's 41 unforced errors and staunch home crowd support at Arthur Ashe Stadium.

In a stunning turn of events at the U.S. Open, American Jessica Pegula knocked out world number one Iga Swiatek with a score of 6-2, 6-4 on Wednesday, securing her first-ever Grand Slam semi-final berth.

Overwhelmed with emotion, the sixth seed celebrated her victory in front of an elated home crowd, achieving the biggest win of her career after reaching her seventh major quarter-final.

Swiatek, appearing fatigued and off her game, contributed to her own downfall with 41 unforced errors and struggled with her serve throughout the match. Pegula, consistently applying pressure, ultimately prevailed to join fellow American Emma Navarro in the semi-finals, where she will face Czech player Karolina Muchova. American men Taylor Fritz and Frances Tiafoe have also advanced to the semi-finals in their respective draw.

(With inputs from agencies.)