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

Madison Keys saved a match point and upset No. 2 Iga Swiatek 5-7, 6-1, 7-6 (10-8) in a high-intensity Australian Open semifinal to reach a Grand Slam title match for the second time in her career.

Madison Keys -- using a mix of solid serves, power and defense -- upset two-time defending champion and top seed Aryna Sabalenka 6-3, 2-6, 7-5 to win the Australian Open on Saturday, giving the 29-year-old American her first Grand Slam title in 46 tries.

Aryna Sabalenka is one win away from a third consecutive Australian Open title after beating close friend Paula Badosa in the semi-finals.

Sabalenka beat good friend Paula Badosa of Spain earlier Thursday, 6-4, 6-2. Sabalenka, a 26-year-old from Belarus, can become the first woman since 1999 to win three consecutive Australian Open singles crowns. "If she plays like this," the 11th-seeded Badosa said, "I mean, we can already give her the trophy."

MELBOURNE - Aryna Sabalenka and Iga Swiatek are clear favourites ... She is projected to get back in the top 10 after Melbourne. Poland’s Swiatek has been the dominant force in the women ...

Madison Keys stuns world number two Iga Swiatek to set up an Australian Open final against two-time defending champion Aryna Sabalenka.

The Belarusian will next face Spain’s world number 12 Paula Badosa that outplayed World No.3 Coco Gauff of the United States, 7-5, 6-4.

Aryna Sabalenka of Belarus plays a forehand return ... Madison Keys of the U.S. celebrates after defeating Iga Swiatek of Poland in their semifinal match at the Australian Open tennis championship ...

USA's Madison Keys celebrates winning her semi-final match against Poland's Iga Swiatek. Aryna Sabalenka is one win away from a third consecutive Australian Open title after beating close friend ...

Madison Keys — using a mix of solid serves, power and defense — upset two-time defending champion and top seed Aryna Sabalenka 6-3 ... eliminated Swiatek, of Poland, in the semifinal.

Aryna Sabalenka and Iga Swiatek are clear favourites to win their respective semifinals on Thursday and set up a blockbuster Australian Open title decider.