World No. 1 Elena Rybakina Withdraws From WTA Finals on Eve of Opener
Defending champion Elena Rybakina withdrew from the WTA Finals with a viral illness one day before play, sending alternate Marta Kostyuk into the draw.
Rybakina Lost the First Set—Then Won 12 of 17 Games and the World No. 1 Ranking
Elena Rybakina recovered to beat Zheng Qinwen 3–6, 6–1, 6–4, reaching her first U.S. Open semifinal and securing the No. 1 ranking for the first time.