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.

Defending Australian Open champion and world number one Aryna Sabalenka won her second-round match to qualify for the third round. Against Spain's Jessica Bouzas Maneiro, the Belarusian's serve let the 26-year-old down,

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.