Medvedev still leads their head-to-head 7-6, although the Italian Sinner has won six of their last seven meetings.
Top seed Swiatek, who won the title two years ago, showcased her all-court game in a straightforward 6-4, 6-1 win over Russian Liudmila Samsonova to open the evening session at Arthur Ashe Stadium and warned she was only going to improve.
The Russian looked out of sorts early on Centre Court as he lost the first set.
Medvedev, a semi-finalist last year, hit 16 aces in his 6-3, 6-4, 6-2 win over Aleksandar Kovacevic of the United States.
De Minaur had never got past the second round at the tournament before this year, winning just three of 10 matches.
Italy's Jannik Sinner destroyed defending champion Daniil Medvedev 6-1, 6-2 in just 69 minutes on Friday to reach the final of the ATP Miami Open, where he will take on Grigor Dimitrov.
Daniil Medvedev returned to action for the first time since his Australian final defeat on Tuesday with a straight sets win over Alexander Shevchenko in Dubai.
Medvedev feels ready to get back on court after spending the last seven days training in Dubai.
Since Stan Wawrinka won his only title in Melbourne in 2014, Novak Djokovic has picked up six trophies, Roger Federer has won two and Rafael Nadal has won one.
Medvedev still leads their head-to-head 7-6, although the Italian Sinner has won six of their last seven meetings.
Top seed Swiatek, who won the title two years ago, showcased her all-court game in a straightforward 6-4, 6-1 win over Russian Liudmila Samsonova to open the evening session at Arthur Ashe Stadium and warned she was only going to improve.
The Russian looked out of sorts early on Centre Court as he lost the first set.
Medvedev, a semi-finalist last year, hit 16 aces in his 6-3, 6-4, 6-2 win over Aleksandar Kovacevic of the United States.
De Minaur had never got past the second round at the tournament before this year, winning just three of 10 matches.
Italy's Jannik Sinner destroyed defending champion Daniil Medvedev 6-1, 6-2 in just 69 minutes on Friday to reach the final of the ATP Miami Open, where he will take on Grigor Dimitrov.
Daniil Medvedev returned to action for the first time since his Australian final defeat on Tuesday with a straight sets win over Alexander Shevchenko in Dubai.
Medvedev feels ready to get back on court after spending the last seven days training in Dubai.
Since Stan Wawrinka won his only title in Melbourne in 2014, Novak Djokovic has picked up six trophies, Roger Federer has won two and Rafael Nadal has won one.
Jannik Sinner ended defending champion Novak Djokovic's bid for a record 25th Grand Slam title on Friday, snapping the Serb's astonishing 33-match winning run at Melbourne Park to reach his first major final.
