No. 19 seed Madison Keys scored the big upset on Day 9 of the Australian Open, defeating No. 6 Elena Rybakina 6-3, 1-6, 6-3 at Margaret Court Arena to advance to the tournament quarterfinals.

The No. 6 seed missed multiple break points to seize the advantage in the third set and Keys profited to move into the quarterfinals.

American Madison Keys upset sixth seed Elena Rybakina 6-3 1-6 6-3 in a roller-coaster match at Margaret Court Arena to march into the quarter-finals of the Australian Open on Monday and extend her win streak to nine matches this year.

Madison Keys won a power-hitting battle with Elena Rybakina in the Australian Open Round of 16 on Monday. In the quarterfinals, she will face Elina Svitolina, who came back from a double-break down in the first set to roll past Veronika Kudermetova.

Madison Keys recalled a couple of tough Australian Open losses, including one to the legendary Serena Williams, shortly after returning to the Slam’s quarterfinals on Monday.

Madison Keys made a stunning comeback to secure a spot in the quarter-finals of the Australian Open, overcoming sixth seed Elena Rybakina in a thrilling three-set match at Margaret Court Arena.

In the Australian Open Round of 16 on Sunday, No. 7-ranked Elena Rybakina takes on No. 14 Madison Keys.Rybakina secured a two-set victory over Dayana Yastremska (6-3, 6-4) in the Round of 32 in

She will next play Ukraine's Elina Svitolina, who beat Veronika Kudermetova 6-4, 6-1 earlier on Jan 20. Read more at straitstimes.com.

The Australian Open bottom half will finalize its semifinalists on Wednesday, with Iga Swiatek taking on Emma Navarro, while Madison Keys faces Elina Svitolina in Melbourne.

With several of the world’s best set to take to the court at the Australian Open, there should be plenty of entertaining tennis on day nine in Melbourne.

Free-rolling Madison Keys is vowing to break the shackles in a conscious quest to parlay her hot summer run into a third Australian Open semi-final appearance. A decade after first making the last four in Melbourne and three years after falling to Ash Barty in the semi-finals, Keys is surprising even herself with her latest charge.