Defending Australian Open champions Caroline Wozniacki and Roger Federer are the headline acts on Day 1 at Melbourne Park.
The 2018 winners are in action in Monday’s night session on Rod Laver Arena, with Federer resuming his usual position under lights on centre court.
But it’ll be a packed, partisan crowd at the same time over on Margaret Court Arena as top Aussie hope and No.15 seed Ash Barty kicks off her campaign against Thailand’s Luksika Kumkhum, followed by Bernard Tomic’s tough encounter with 2018 finalist and No.6 seed Marin Cilic.
Top Aussie man Alex de Minaur will have a short turnaround from his two Sydney International matches played on Saturday, as the No.27 seed features in the afternoon on Show Court 1 against Portugal’s Pedro Sousa.
In the day on Rod Laver Arena, Maria Sharapova kicks off proceedings against Britain’s Harriet Dart, while Aussie James Duckworth then faces No.2 seed Rafael Nadal. Former Australian Open champion Angelique Kerber then battles Slovenian Polona Hercog to finish the session.
Andy Murray’s final Australian Open campaign sees him start on Melbourne Arena, in a tough clash with No.22 seed Roberto Bautista Agut in the evening.
Court 3 has a fascinating line-up including two of the young up-and-comers of the tennis world, Aryna Sabalenka and Stefanos Tsitsipas, in their first round matches followed by a pair of Aussies in action in Ellen Perez and Jordan Thompson.
The bottom half of both the Men’s and Women’s Singles draws will play on Monday, with the top half of each draw to play on Tuesday, then continuing to alternate.
DAY 1 ORDER OF PLAY (All courts from 11am AEDT unless stated)
Rod Laver Arena
30-Maria Sharapova (RUS) v Harriet Dart (GBR)
James Duckworth (AUS) v 2-Rafael Nadal (ESP)
Polona Hercog (SLO) v 2-Angelique Kerber (GER)
Alison Van Uytvanck (BEL) v 3-Caroline Wozniacki (DEN)
Denis Istomin (UZB) v 3-Roger Federer (SUI)
Margaret Court Arena
14-Julia Georges (GER) v Danielle Collins (USA)
5-Sloane Stephens (USA) v Taylor Townsend (USA)
Not before 3pm
27-Alex de Minaur (AUS) v Pedro Sousa (POR)
15-Ashleigh Barty (AUS) v Luksika Kumkhum (THA)
6-Marin Cilic (CRO) v Bernard Tomic (AUS)
5-Kevin Anderson (RSA) v Adrian Mannarino (FRA)
Maria Sakkari (GRE) v 22-Jelena Ostapenko (LAT)
13-Kyle Edmund (GBR) v Tomas Berdych (CZE)
Not before 6pm
22-Roberto Bautista Agust (ESP) v Andy Murray (GBR)
Not before 7pm
8-Petra Kvitova (CZE) v Magdalena Rybarikova (SVK)
Jessika Poncet (FRA) v 19-Caroline Garcia (FRA)
20-Grigor Dimitrov (BUL) v Janko Tipsarevic (SRB)
Alison Riske (USA) v 9-Kiki Bertens (NED)
Not before 5pm
Matthew Ebden (AUS) v Jan-Lennard Struff (GER)
Anna Kalinskaya (RUS) v 11-Aryna Sabalenka (BLR)
14-Stefanos Tsitsipas (GRE) v Matteo Berrettini (ITA)
Ellen Perez (AUS) v Yafan Wang (CHN)
Feliciano Lopez (ESP) v Jordan Thompson (AUS)
Other Aussies in action
First match: Astra Sharma (AUS) v Priscilla Hon (AUS)
Second match: Paula Badosa Gibert (ESP) v Kimberly Birrell (AUS)
Fourth match: Federico Delbonis (ARG) v John Millman (AUS)
Second match: Bethanie Mattek-Sands (USA) v Zoe Hives (AUS)
Second match: Jason Kubler (AUS) v Thomas Fabbiano (ITA)
Third match: Marc Polmans (AUS) v Denis Kudla (USA)