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.

Madison Keys says she kept telling herself to be brave down the stretch of a tight third set in the Australian Open final against two-time defending champion Aryna Sabalenka.

The 29-year-old from Rock Island, Illinois, beat the No. 1-ranked woman and two-time defending Australian Open champion at Melbourne Park Saturday night.

Aryna Sabalenka said she was proud to have reached three Australian Open finals in a row but admitted after losing Saturday's decider to Madison Keys: "It's trophy or nothing."

Aryna Sabalenka has moved one win away from becoming the first woman since 1999 to win three consecutive Australian Open titles

Underdog Madison Keys upset Aryna Sabalenka 6-3, 2-6, 7-5 in the Australian Open final on Saturday to win her first Grand Slam crown at the age of 29.

United States’ Madison Keys displayed a stunning performance on Rod Laver Arena, pulling off a major upset in the women's singles final on Saturday,5. The 29-year-old, whp was seeded 19th, beat the World No.

She is the oldest woman to become a first-time Slam champ since Flavia Pennetta was 33 at the 2015 U.S. Open. This was the 46th Slam appearance for Keys.

Melbourne: Madison Keys of the United States upset two-time defending champion Aryna Sabalenka of Belarus 6-3, 2-6, 7-5 in the Australian Open final on Saturday night to collect her first

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 world No. 1 and three-time Grand Slam champion lags behind her contemporaries in endorsements despite standing atop her sport