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.

Aryna Sabalenka hopes to do something no woman has in more than a quarter of a century: win a third consecutive Australian Open championship.

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.