Elena Rybakina put on a brilliant performance to defeat favourite Aryna Sabalenka 64, 46, 64 and lift her first Australian Open trophy.
Jannik Sinner was in ominous form on the Rod Laver Arena court he has ruled for two years before the match was cut short.
List of Wimbledon women's singles champions after Iga Swiatek beat Amanda Anisimova in the final on Saturday:
Madison Keys fought off a late challenge from fellow American Hailey Baptiste to book her spot in the French Open quarter-finals with a 6-3, 7-5 victory at Roland Garros on Monday.
Aryna Sabalenka will battle American 19th seed Madison Keys in the final on Saturday looking to become the first woman since Martina Hingis from 1997-99 to win the Australian Open title three times in a row.
World number one Amelie Mauresmo lost 6-4, 7-5 to defending champion Lindsay Davenport in the New Haven quarter-finals.
Lindsay Davenport was one of seven seeds to advance but four went out, including number three Daniela Hantuchova, fifth-seeded Patty Schnyder and Austrian Sybille Bammer, in the second round of the Amelia Island Championships.
She will play seventh seed and 2003 champion Serena Williams in the final.
Lindsay Davenport hailed Serena Williams for delivering a 'powerful message' that shows it is possible to 'pursue personal goals even when you're a mum'.
Former champion Lindsay Davenport, who has been struggling with a right knee injury, pulled out of Wimbledon on Thursday.
The former world number one beat Aravane Rezai of France 6-2, 6-2 in the final of the Auckland Classic.
Former world number one Lindsay Davenport has given birth to a baby girl, her agent said on Sunday.
Former world number one Lindsay Davenport continued her remarkable comeback by crushing third seed Julia Vakulenko of Ukraine 6-4, 6-1 in the Quebec City Challenge final on Sunday.
The American has been out of action since March with a shoulder problem.\n
The 17th seed has been in no-nonsense mood so far in Melbourne, moving through the rounds with the minimum of fanfare, but faces her biggest test against the German.
Lindsay Davenport beat Russian Anna Chakvetadze 6-3, 6-3 to reach the final of the New Haven Open
Top seed Lindsay Davenport marched into the quarter-finals of the Australian Open with a 6-2, 6-2 victory over 13th seed Karolina Sprem of Croatia on Monday.
A shoulder injury forced her to withdraw from a semi-final with Justine Henin-Hardenne.
Top seed Lindsay Davenport had little difficulty advancing to the semi-finals at the Cincinnati Open on Friday.
Lindsay Davenport claimed her first title of the year beating Jelena Jankovic in the final.