15:21 CET - All over in Hong Kong for the day, as Kei Nishikori (35) has overcome the challenge of Cameron Norrie (29) in a topsy-turvy affair with the Japanese star winning the encounter 6-3, 3-6, 6-2.
13:44 CET - Top seed Novak Djokovic (37) has been dumped out in Brisbane, with Reilly Opelka (27) defeating the 24-time Grand Slam champion in straight sets, 7-6(6), 6-3, to move into tomorrow's semi-finals.
13:15 CET - Over in Hong Kong, China's Juncheng Shang (19) has booked his spot in the semi-finals after recovering from a poor opening set to outlast Fabian Marozsan (25) 1-6, 6-3, 6-4.
Earlier, seeded players Arthur Fils (20) and Lorenzo Musetti (22) were both knocked out of the tournament.
Check out the full schedule in Hong Kong here.
11:49 CET - Top seed Aryna Sabalenka (26) is safely through to the last four in Brisbane after a convincing 6-3, 6-4 triumph over Marie Bouzkova (26).
The Belarusian will face teenage star Mirra Andreeva (17) in tomorrow's semi-finals.
10:54 CET - Tomas Machac (24) has fired the Czech Republic into an unassailable 2-0 lead in their quarter-final clash against Italy at the United Cup after thrashing Flavio Cobolli (22) 6-1, 6-2 in just 56 minutes.
10:13 CET - Talented Frenchman Giovanni Mpetshi Perricard (21) is through to the semi-finals in Brisbane after a hard-fought 7-5, 7-6(5) triumph over Jakub Mensik (19).
09:20 CET - Karolina Muchova (28) has given the Czech Republic the perfect start in their United Cup quarter-final tie against Italy, sweeping aside Jasmine Paolini (28) 6-2, 6-2.
08:53 CET - Over in Auckland, Naomi Osaka (27) continued her impressive start to 2025, battling back from a set down to outlast Hailey Baptiste (23) 6-7(2), 6-1, 6-2 in the quarter-finals.
08:42 CET - There's been plenty of action overnight in Brisbane, with eighth seed Mirra Andreeva (17) securing an impressive 6-4, 7-6(2) victory over Ons Jabeur (30) to move into tomorrow's semi-finals. Anhelina Kalinina (27) and Polina Kudermetova (21) also claimed wins.
Meanwhile, on the men's side of the tournament, second seed Grigor Dimitrov (33) moved into the last four after his opponent Jordan Thompson (30) retired while trailing 1-6, 1-2. Czech Jiri Lehecka (23) also progressed after a fairly routine 6-4, 6-4 triumph over Nicolas Jarry (29).
Check out the full men's schedule in Brisbane here and the women's schedule here.
08:30 CET - Good morning and welcome to our coverage of today's tennnis!