21:45 CET - Finally from tonight, there is big action from the United Cup as Poland takes on the Czech Republic with top spot up for grabs before Kazakstan faces Germany.
Over in Brisbane action gets underway from 02:00 CET as Grigor Dimitrov (33) headlines action.
Follow all the action in Brisbane here.
21:40 CET - Our focus here turns to the night action from around the globe starting with Aukland as Rebecca Marino (34) takes on Bernarda Pera (30) from 23:30 CET.
Follow all the action from Aukland here.
13:40 CET - Anhelina Kalinina (27) was the final winner of the day in Brisbane, with the Ukrainian beating fifth seed Diana Shnaider (20) 6-3, 4-6, 6-1.
Meanwhile, in Hong Kong, Kei Nishikori (35) rolled back the years with a convincing 6-2, 6-3 triumph over Denis Shapovalov (25).
11:58 CET - Over in Auckland, third seed Amanda Anisimova (23) has been dumped out in the opening round after a 6-2, 2-6, 3-6 defeat to compatriot Alycia Parks (24).
Check out the full schedule in Auckland here.
11:17 CET - Top seed Novak Djokovic (37) has made a winning start in Brisbane, defeating home favourite Rinky Hijikata (23) in comfortable fashion, 6-3, 6-3.
Ons Jabeur (30) was also victorious, with the Tunisian showing glimpses of her best form in a relatively routine 6-3, 6-2 win over Ekaterina Alexandrova (30).
09:55 CET - Taylor Fritz (27) was in formidable form overnight, cruising past Borna Coric (28) 6-3, 6-2 as Team USA dispatched Croatia 3-0 in the United Cup, while Jasmine Paolini's (28) 6-0, 6-2 triumph over Chloe Paquet (30) helped Italy whitewash France.
09:33 CET - There have been plenty of notable results in Brisbane overnight, with fourth seed Frances Tiafoe (26) seeing off Adam Walton (25) 7-6(5), 6-3 and talented Frenchman Giovanni Mpetshi Perricard (21) battling past Nick Kyrgios (29) 7-6(2), 6-7(4), 7-6(3) on the Aussie's long-awaited return to the singles court.
Meanwhile, on the women's side of the draw, world number one Aryna Sabalenka (26) swept aside Renata Zarazua (27) 6-4, 6-0, as seeded players Paula Badosa (27), Anna Kalinskaya (26) and Jelena Ostapenko (27) all fell to defeat.
Check out the full men's schedule in Brisbane here and the women's schedule here.
08:50 CET - Good morning and welcome to our coverage of today's tennis!