On January 25, Beijing time, the Australian Open women's singles quarterfinals began to compete, and the No. 4 seed Klechkova met with the world's 51st-ranked Case. After two sets of competition, Keyes swept Krichkova 2-0 and reached the final four of the Australian Open for the first time in seven years.
In the first set, Klechkova defused 2 break points in the 2nd set, and Keith also defused 2 break points in the 3rd set. In the 5th inning, Keys saved four break point opportunities and then she completed a key break in the 6th set to take a 4-2 lead. After that, both sides saved their own set, and in the 9th set, Keys successfully saved the set to win the set and win the first set 6-3.
In the second set, Keys broke Klechkova's two serves in a row to make it 3-0. In the 4th inning, Keys completed a comeback to make it 1-3. In the 7th inning, Keys cashed in on the break point again in the opponent's serve and came to win the set 5-2. In the 8th set, Keys managed to save his serve and won the second set 6-2.
Finally, in a match that took 1 hour and 25 minutes, world No. 51 Case defeated the No. 4 seed Klechkova 6-3, 6-2 to reach the final four of the Australian Open women's singles. This is the fifth time in her career that Case has reached the final four of a Grand Slam and the first time she has reached the final four at a Grand Slam since the 2018 US Open.