22:45 CET - That's all for today's tennis but be sure to tune back in tomorrow as the action continues in Montpellier, Linz and Singapore.
22:10 CET - Wrapping things up in Montpellier for the day, Dominik Koepfer (30) has beaten Gregoire Barrere (30) 6-4, 7-6 to advance to the second round.
See tomorrow's program in Montpellier here.
22:05 CET - In the last of the two matches in Linz today, Sorana Cirstea (34) has come back to beat Arantxa Rus (34) 5-7, 6-2, 6-3 to advance to the second round of the indoor event.
Check out tomorrow’s schedule in Linz here.
20:18 CET - Swiss legend Stanislas Wawrinka (39) has been knocked out in Montpellier in the first round after losing 6-4, 6-3 to French up-and-comer Arthur Cazaux (22).
Over in Linz, the WTA indoor event there is underway with Bulgaria's Viktoriya Tomova (29) winning the opening main-draw match against Spaniard Jessica Bouzas Maneiro (22) 7-6, 6-4.
18:36 CET - The opening match of the tournament in Montpellier has been won by Yunchaokete Bu (23), with the eighth seed beating Daniel Altmaier (26) 7-6, 6-3.
17:00 CET - In the last match of the day in Singapore, qualifier Simona Waltert (24) upset Ajla Tomljanovic (31) 6-2, 6-3 to advance to the second round.
Catch up on all the results from Singapore here.
15:20 CET - Top seed Anna Kalinskaya (26) has advanced in Singapore thanks to a 6-4, 4-6, 6-2 win over Caroline Dolehide (26).
14:50 CET - Australian Open winner and world number one Jannik Sinner (23) has withdrawn from the ABN AMRO Open tournament in Rotterdam after winning the first Grand Slam of the season.
Read more about that story here.
12:21 CET - Emma Raducanu (20) has fallen at the first hurdle in Singapore with the seventh seed being beaten 5-7, 7-5, 7-5 by Cristina Bucsa (27) of Spain.
10:43 CET - Qualifier Maya Joint (18) has claimed a 4-6, 6-1, 7-5 win over Alycia Parks (24) to advance in Singapore, while Ann Li (24) has beaten Daria Saville (30) 6-3, 6-1.
07:40 CET - Welcome back to the Tennis Tracker this Monday morning! The Australian Open may be over, but all eyes have now moved elsewhere.
In Singapore, Emma Raducanu (22) is in action very soon, and she will be followed by No. 1 seed Anna Kalinskaya (26), Erika Andreeva (20) and Ajla Tomljanovic (31); sixth seed Camila Osorio (23) has already beaten Bernarda Pera (30) 6-1, 6-7, 6-3.
Meanwhile, Jessica Bouzas Maneiro (22) will take to the court in Linz, while Stanislas Wawrinka (39) headlines a handful of matches in Montpellier.