Aussie tennis fans are describing it as "fitting" that the player who beat Danielle Collins went on to win the Australian Open after Collins became enemy No.1 in Melbourne last week. And the tennis world is marvelling at Madison Keys' giant-killing run to her first grand slam title.

Iga Swiatek says she has not reached her "peak" yet after she ruthlessly moved past lucky loser Eva Lys in 59 minutes to reach the quarter-finals of the Australian Open.

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.

Elena Rybakina, the sixth seed at Melbourne Park, had looked in fine form in the early rounds, but came into Monday's clash with Madison Keys at Margaret Court Arena carrying a back issue

Australian Open quarterfinals are set. Four more men and women booked their spots in the final eight on Monday, including three seeded

Swiatek, Svitolina, Keys, Sonego and Shelton also make it through to the last-eight stage on a hot day in Melbourne.

Elina Svitolina continues her great start to the season and has been through to the Australian Open quarterfinal, while Elena Rybakina suffered a round-of-16 loss. On Monday, the Ukrainian ousted world No.

Elina Svitolina has rallied from two breaks down in the first set and taken 11 of the next 12 games in a 6-4, 6-1 victory over Veronika Kudermetova to reach the Australian Open quarterfinals for

Elina Svitolina has rallied from two breaks down in the first set and taken 11 of the next 12 games in a 6-4, 6-1 victory over Veronika Kudermetova to reach the Australian Open quarterfinals for the t

Elina Svitolina beat Veronika Kudermetova in the fourth round of the Australian Open but there was no handshake at the net from the Ukrainian.

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.

Keys again needed three sets to get past the 6th seed, Elena Rabayinka ... Quarterfinals: Elina Svitolina, 28th seed (Ukr) 3-6, 6-3, 6-4 Keys and Svitolina after their Australian Open quarterfinal ...