Australian Open women's champion Madison Keys has returned to her career-best ranking and joins three other American women in the WTA top 10, while men's champion Jannik Sinner maintained his significant lead atop the ATP list.

Madison Keys of the United States has upset two-time defending champion Aryna Sabalenka of Belarus 6-3, 2-6, 7-5 in the Australian Open final.

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.

Madison Keys arrived in Australia under the radar and with the modest goal of seeing how well she could perform with her 30th birthday looming next month.

The 29-year-old became the fourth-oldest first-time Grand Slam champion in the professional era, ending Sabalenka's bid for a third straight Melbourne Park crown.

The American tennis player, 29, secured her first grand slam title on Jan. 25, achieving a breakthrough win over world No. 1 Aryna Sabalenka, who was vying for what would have been a historic three-peat. The women's singles match at Melbourne's Rod Laver Arena saw Keys win 6-3, 2-6, 7-5.

Madison Keys won her first ever grand slam title on Saturday, stunning two-time defending champion and world No. 1 Aryna Sabalenka 6-3 2-6 7-5 in a thrilling Australian Open women’s final.

Madison Keys reflects on her journey and the pressure of living up to expectations, emphasizing the importance of therapy in overcoming mental challenges. Her Grand Slam victory at the Australian Open came after embracing therapy and self-acceptance,

Madison Keys of the U.S. celebrates after defeating Iga Swiatek of Poland in their semifinal match at the Australian Open tennis championship in Melbourne, Australia, early Friday, Jan. 24, 2025. (AP Photo/Vincent Thian) AP

Veteran Madison Keys took down No. 2 seed Iga Swiatek in a thrilling three-set match (5-7, 6-1, 7-6(8)) in the Australian Open semifinal on Thursday to advance to just the second Grand Slam final of her career.

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.