22:55 CET - Good evening and welcome back to the Tennis Tracker as the second round begins at the Australian Open!
The action starts on Rod Laver Arena at 01:30 CET, with two-time champion Aryna Sabalenka taking on qualifier Zhuoxuan Bai, which is followed by another world number one, Carlos Alcaraz. The Spaniard continues his quest for the Career Grand Slam against Yannick Hanfmann.
The night session sees home favourite Alex de Minaur face Hamad Medjedovic, and then another Australian favourite, Priscilla Hon, clashes with 18-year-old starlet Iva Jovic.
On Margaret Court Arena, Andrey Rublev comes up against Jaime Faria, before Coco Gauff goes head-to-head with Venus Williams' conqueror, Olga Danilovic.
At night, the superb Mirra Andreeva has the tricky test of Maria Sakkari, followed by Frances Tiafoe vs Francisco Comesana.
In other matches, Daniil Medvedev, Elina Svitolina, Alexander Zverev, Alexander Bublik, Jasmine Paolini, Tommy Paul, Victoria Mboko, Karolina Muchova and Emma Raducanu will all take to the court.
Follow the men's side in Melbourne here and the women's side here.