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.

Follow live reaction to Madison Keys’ winning her first Grand Slam title after a thrilling 6-3, 2-6, 7-5 final victory over Aryna Sabalenka

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.

Madison Keys sealed her maiden Grand Slam title with a three-set win over two-time defending champion Aryna Sabalenka in the women's singles final at the Australian Open on Saturday.

Aryna Sabalenka saw her two-year reign at the Australian Open end after losing to Madison Keys in the final – and she didn’t take it well.

American Madison Keys dethroned Aryna Sabalenka to become the oldest first-time winner of the women’s singles title at the Australian Open.

Keys, born in Illinois and now based in Florida, is the oldest woman to become a first-time Slam champ since Flavia Pennetta, who was 33 at the 2015 US Open.

World No1 denied third consecutive Melbourne triumph as American becomes one of the oldest first-time Grand Slam winners of the Open era

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.

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

Australian Open runner-up Aryna Sabalenka could be facing a big fine for her post-match reaction in the final. And Novak Djokovic has been called out for posting his injury scans at a time when the tennis world was celebrating Madison Keys' maiden grand slam triumph.