Reigning Australian Open men's singles champion Jannik Sinner, 2023 runner-up Stefanos Tsitsipas, women's second seed Iga Swiatek and two-time Melbourne Park women's singles champion Victoria Azarenka headline Day 2 action of AO 2025 on Monday at Melbourne Park.
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Top-seeded Sinner opens his title defence against Chilean Nicolas Jarry, while Tsitsipas, the 11th seed, faces American Alex Michelsen.
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Swiatek, the four-time Roland Garros champion who was stunned in the third round at Melbourne Park last year by Czech upstart Linda Noskova, opens against world No.46 Katerina Siniakova, while Azarenka, 35, plays Italian Lucia Bronzetti after having made the fourth round or better for the past three years.