The Madison Keys who will play two-time defending champion Aryna Sabalenka for the title at the Australian Open is not the same players who was the runner-up at the U.S. Open in 2017.

When Madison Keys finally finished off her 5-7, 6-1, 7-6 (10-8) upset of No. 2 Iga Swiatek in a high-intensity, high-quality Australian Open semifinal on Thursday night, saving a match point along the way,

But that could well change on Saturday, when Keys will take on two-time defending Australian Open champion Sabalenka in her second slam final having produced a stunning upset of Iga Swiatek. She is confident she has learned from her US Open experience, saying with a smile: “I’ve obviously thought of that match endlessly for the past eight years.