Pegula has withdrawn from the WTA Finals Riyadh presented by PIF due to a nagging left knee injury. She will be replaced in the Orange Group by the first alternate and World No. 9 Daria Kasatkina.

Jessica Pegula’s late season rally has ended with the world’s No. 6-ranked player withdrawing from the WTA Finals because of a left knee injury. Pegula, who earlier this year rose to a No. 3 world ranking after reaching the U.

World number two Iga Swiatek will play Daria Kasatkina on Thursday in her must-win match to stay in the hunt for a spot in the WTA Finals semi-finals after Jessica Pegula withdrew from the tournament with a knee injury.

Ellen Perez and American Nicole Melichar-Martinez have made the knockout phase of the season-ending championships

China's Zheng Qinwen reached the semi-finals of the WTA Finals in Riyadh after claiming an impressive 6-1 6-1 win over Italian fourth seed Jasmine Paolini on Wednesday.

American star Coco Gauff defeated world No. 2 Iga Swiatek 6-3, 6-4 on Tuesday, sealing her spot in the semifinals of the year-end WTA Finals in Riyadh, Saudi Arabia.

Coco Gauff beat defending champion Iga Swiatek 6-3 6-4 at the WTA Finals in Riyadh on Tuesday to reach the semi-finals and ensure Aryna Sabalenka would finish the year as world number one. It was Gauff's second win over Swiatek in 13 meetings.

China's Zheng Qinwen reached the semi-finals of the WTA Finals in Riyadh after claiming an impressive 6-1 6-1 win over Italian fourth seed Jasmine Paolini on Wednesday. In her WTA Finals debut, the 22-year-old became the youngest player to reach the semi-finals since Petra Kvitova in 2011.