Emma Raducanu will play American Shelby Rogers when she makes her Grand Slam return at the Australian Open following an eight-month injury lay-off.
The 21-year-old Briton, who had wrist and ankle surgeries last May, could play British number one Katie Boulter in the Melbourne third round.
Boulter starts against China's Yuan Yue, with 12th seed Zheng Qinwen looming in the second round.
Five-time finalist Andy Murray plays 30th seed Tomas Martin Etcheverry.
The Australian Open, which is the first Grand Slam event of the 2024 season, starts at Melbourne Park on Sunday.
The tournament has been extended to 15 days, in a move which organisers say will alleviate late-night finishes, and culminates with the finals weekend on 27-28 January.
Raducanu starts with US Open rematch
Former British number one Raducanu made her competitive comeback at the Auckland Classic last week and is set to return to Grand Slam action in a draw that has special significance.
In the extraordinary US Open title triumph that shocked the world in 2021, Raducanu won 11 games in a row to beat Rogers and reach the quarter-finals in New York.
After her lengthy absence, Raducanu is playing at Melbourne Park under an injury-protected ranking of 103rd in the world.
Rogers, also playing under an injury-protected ranking, had been a fixture inside the top 50 before missing the second half of last season with an abdominal injury.
The winner will play China's Wang Yafan or Romanian 22nd seed Sorana Cirstea in the second round.
Raducanu and 57th-ranked Boulter, who is aiming to build on a career-best season in 2023, are among three Britons with direct entry to the women's singles.
Jodie Burrage is making her debut in the Australian Open main draw and takes on German world number 81 Tamara Korspatsch.
