05:45 CET - The men's matchup between Novak Djokovic and Lorenzo Musetti is underway!
05:15 CET - Jessica Pegula battles back after being down 3-5 in the second set to defeat Amanda Anisimova 6-2, 7(7)-6(1).
She now reaches her first-ever Australian Open semifinal after earning her second top 10 win of the year, where she'll face Elena Rybakina.
04:30 CET - Jessica Pegula is up 1-0 on Amanda Anisimova after taking the first set 6-2. Anisimova is currently ahead in the second set 2-1 as the two Americans continue to square off.
03:25 CET - Elena Rybakina defeats Iga Swiatek in straight sets 7-5, 6-1.
She ends the match on an ace and has yet to lose a single one of her 10 sets in the entirety of this year's Australian Open.
She has now won 18 of her last 19 matches as she advances to her fourth Grand Slam semifinal, her first for this tournament in three years.
02:50 CET - Elena Ryabkina takes the first set 7-5 in her match against Iga Swiatek.
23:30 CET - Good evening and welcome to today’s Tennis Tracker, as the remaining two men's and women's quarter-finals take place on a mouthwatering day of match-ups!
Play gets started in a couple of hours at 01:30 CET, with Career Grand Slam-chasing Iga Swiatek facing 2023 finalist Elena Rybakina in a heavyweight tussle on Rod Laver Arena.
Following that clash, fourth seed and runner-up at the previous two majors, Amanda Anisimova, comes up against compatriot Jessica Pegula, who knocked out defending champion Madison Keys in the previous round.
Later on, the first of two men's matches sees 10-time former champion Novak Djokovic take on fifth seed Lorenzo Musetti, with the Italian looking to continue his remarkable improvement on the surface.
And last but by no means least, defending champion Jannik Sinner faces big-serving American Ben Shelton. That match is expected to get underway after 09:00 CET.
Check out the full men's schedule here and the full women's draw here.