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.

American Madison Keys first made the Australian Open semifinals 10 years ago. A decade on, she hopes to do it again, but she'll have to go through Ukraine's Elina Svitolina.

Elina Svitolina’s ‘fighting spirit’ on show with win over Russian at Aus Open - The Ukrainian spoke of her added motivation while Madison Keys upset Elena Rybakina.

Madison Keys won a power-hitting battle with Elena Rybakina in the 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.

Elina Svitolina overcame a slow start to defeat Veronika Kudermetova and reach the Australian Open quarterfinals for the third time. This marks her 12th Grand Slam quarterfinals appearance. She will face Madison Keys next.

American Madison Keys defeated sixth seed Elena Rybakina in a thrilling match at the Australian Open, advancing to the quarter-finals. Despite a strong start and a challenging second set, Keys regained momentum to secure her third victory over a top-10 player this month.

19th seed Madison Keys of the United States has reached the Australian Open quarter-finals for the fourth time in her career. She clinched a hard-fought win over sixth seed Elena Rybakina of Kazakhstan. The match lasted 1 hour and 49 minutes, ending with a scoreline of 6-3, 1-6, 6-3 in favor of Keys.

Elina Svitolina advances to Australian Open quarterfinals, to face Madison Keys after defeating Veronika Kudermetova.