Serena Williams produced a stunning performance to beat second seed Simona Halep and set up an Australian Open semi-final with Naomi Osaka.
The 39-year-old American, bidding for a record-equalling 24th Grand Slam title, won 6-3 6-3 against the Romanian.
Earlier on Tuesday, Osaka cruised past Hsieh Su-wei in just 66 minutes to reach the last four.
The Japanese third seed, who won the second of her three Grand Slam titles at Melbourne Park in 2019, beat the Taiwanese 6-2 6-2.
https://twitter.com/AustralianOpen/status/1361619835004805120Now Osaka will face 10th seed Williams - a seven-time champion in Melbourne - on Thursday for a place in Saturday's final.
https://twitter.com/AustralianOpen/status/1361642630392606725It will the first meeting between the pair since their infamous 2018 US Open final.
That saw Osaka win her maiden major title after Williams accused umpire Carlos Ramos of being a "thief" in some of the most dramatic scenes at a Grand Slam final.
