AT A GLANCE

Facts and figures about the Australian Open, the first Grand Slam tournament of 2023:

Where: courts

When: Play in the two-week tournament begins Monday morning in Australia (Sunday night PST) and there are day and night sessions. The women’s singles final is Saturday, Jan. 28; the men’s singles final is Sunday, Jan. 29.

Seedings: Iga Swiatek is seeded No. 1 in the women’s bracket, her first time in that spot at the Australian Open, where she reached the semifinals a year ago. Defending champion Rafael Nadal is the No. 1 seed in the men’s draw, moving up a spot because top-ranked Carlos Alcaraz withdrew from the tournament because of a leg injury. Novak Djokovic is seeded No. 4 as he makes his return to Melbourne.

2022 women’s singles champion: Ash Barty, Australia

2022 men’s singles champion: Rafael Nadal, Spain

Who is missing: This is the first Grand Slam tournament since Serena Williams and Roger Federer — owners of a combined 43 major singles championships — announced last year they were ending their playing careers. Also now retired: Barty. Other key players who are not in the field include Alcaraz, Venus Williams (injured), Naomi Osaka (out of action since September) and Simona Halep (serving a provisional doping ban). Osaka announced Wednesday on social media that she is pregnant and will be taking the year off.

Prize money: Total prize money for the Australian Open is $76.5 million Australian dollars (about $53 million). The women’s and men’s singles champions each will be paid $2.975 million Australian dollars (about $2 million), a drop of 37.5% from last year’s checks of $4.4 million Australian dollars (about $3.15 million).