Jannik Sinner has made a successful start to his Australian Tennis Open title defence with a straight-sets win over Nicolas Jarry, two of which went to tie-breaks

He's been asked what returning to Melbourne Park feels like as a champion.



Carlos Alcaraz and Novak Djokovic also moved into the second round but Nick Kyrgios was knocked out.

Naomi Osaka has advanced in the women's draw, showing no signs of the abdominal strain that hindered her preparation via the ASB Classic.

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