01:45 CET - The first match of the day takes place between the world number one Aryna Sabalenka and teenage star Iva Jovic. Follow the action on Flashscore.
23:50 CET - With just over 30 minutes to go until this year's Australian Open quarter-finals get underway, click here to read our preview of the first set of matches.
23:30 CET - Good evening and welcome to today's Tennis Tracker, as the Australian Open quarter-finals get underway in a sizzling Melbourne!
Play gets started in a couple of hours at 01:30 CET, with women's top seed Aryna Sabalenka facing American sensation Iva Jovic on the Rod Laver Arena.
Following that clash, former finalist and men's third seed Alexander Zverev takes on rising star Learner Tien, who comfortably dispatched Daniil Medvedev in the previous round.
Later on, in the night session, Coco Gauff comes up against Elina Svitolina at around 09:00 CET, before Career Grand Slam-chasing Carlos Alcaraz faces home favourite and sixth seed Alex de Minaur.
Check out the full men's schedule here and the full women's draw here.