NEW YORK — Aryna Sabalenka thought it was all slipping away. What a battle. Key points and original sources are listed below.

• NEW YORK — Aryna Sabalenka thought it was all slipping away. Her US Open title reign and her lengthy hold on the No. 1 ranking in women’s tennis were just about gone. Then Sabalenka proved she’s not giving any of it up without a fight. Sabalenka kept alive her...S1

• What a battle. What an incredible player she is, and I'm speechless right now because I was pushing myself to the limit in this match, especially in the third set, Aryna Sabalenka saidS2

• The two-time defending champion needed a deciding-set tie-break to overcome Wimbledon winner to reach the last four at Flushing Meadows.S3

• The top seed wins 7-6 (7/1), 3-6, 7-6 (10/7) to set up semi-final with PegulaS4