Aryna Sabalenka ranked second in the women's section, suffered a reversal. She was defeated in the fourth round by Estonia's Kaia Kanepi. Kanepi has managed to beat Sabalenka 5-7, 6-2, 7-6(10) to book a place in the quarterfinals for the first time.
In the other match, 20-year-old Iga Swietek of Poland has reached the quarterfinals. She defeated Romania's Sorana Cirstea 5-7, 6-3, 6-3. Switek has reached the quarter-finals of the Australian Open for the first time. Switek is now going to face Estonia's Cayya Kanepi.
At the same time, Danielle Collins of the United States made a great comeback after losing a set, defeating 19th seed Ellyse Mertens to secure her place in the quarter-finals. They have won the match 4-6, 6-4, 6-4. Earlier, in the third round, he had also won after losing a set against Clara Touson. In the next round, he will face the experienced Elise Cornet of France. Two-time Grand Slam champion Simona Halep suffered a reversal. She was defeated in the fourth round by France's Elise Cornet to advance to the quarterfinals of a Grand Slam for the first time.