I’m glad I closed that first set and in the second it felt like whatever I would do would work. She’ll play 15th-seeded Yulia Putintseva in the third round, the Kazakhstan player beating American Kessler McCartney 6-2, 7-5. The Sabalenka match was a prelude on Pat Rafter Arena for later men’s matches involving Nick Kyrgios and Novak Djokovic.