20:55 CET - That's all from the courts of Geneva, Hamburg, Strasbourg and Rabat for today, but be sure to tune in tomorrow for all four finals!
20:16 CET - In the day's last semi, Andrey Rublev has beaten Felix Auger-Aliassime 6-1, 6-4 to advance to the Hamburg final.
The third-seeded Russian will take on Flavio Cobolli in the title decider tomorrow. Hitting form just in time for the French Open!
19:12 CET - Danielle Collins is out of the running in Strasbourg after losing her semi-final to Liudmila Samsonova, with the Russian winning 6-4, 6-2.
Eighth seed Samsonova will face fourth seed Elena Rybakina in the decider tomorrow.
18:43 CET - Novak Djokovic is just one match away from securing his 100th title on the ATP Tour after the Serb proved too strong for Cameron Norrie in their Geneva semi-final, winning 6-4, 6-7(6), 6-1.
18:32 CET - Flavio Cobolli is through to the Hamburg final, with the Italian coming from a set down to outlast Argentina's Tomas Martin Etcheverry 2-6, 7-5, 6-4.
Meanwhile, in Rabat, Jaqueline Cristian will face Maya Joint in tomorrow's final after the Romanian defeated Camila Osorio 6-7(6), 6-4, 6-4 in just under three hours.
17:35 CET - Fourth seed Elena Rybakina has sealed her place in the Strasbourg final after recovering from a second-set wobble to defeat Beatriz Haddad Maia 7-6(7), 1-6, 6-2 in two hours and 48 minutes.
She'll face either Danielle Collins or Liudmila Samsonova in the showpiece event tomorrow.
15:11 CET - Hubert Hurkacz has eased past Sebastian Ofner 6-3, 6-4 to book his berth in the Geneva final! The big Pole needed a little over an hour to get the job done, and he is yet to drop a set in Switzerland.
Next up, he will face the winner of Novak Djokovic and Cameron Norrie for the title.
14:55 CET - The first semi-final of the day has concluded over in Rabat. Australia's Maya Joint will play in the decider in Morocco after her opponent and compatriot, Ajla Tomljanovic, retired from their all-Aussie clash while trailing 6-4. It will be Joint's first Tour-level final!
10:49 CET - We’re a little over three hours away from our first semi-final of the day in Geneva, where sixth seed Hubert Hurkacz takes on Sebastian Ofner at 14:00 CET. Following that clash, Novak Djokovic faces Cameron Norrie, with the Serb just two matches away from securing a landmark 100th ATP title.
Over in France, Elena Rybakina looks to continue her promising week at the Strasbourg 500 when she comes up against Beatriz Haddad Maia in the last four at 14:30 CET. The other semi-final sees Danielle Collins take on Liudmila Samsonova.
Elsewhere, there are also semi-finals in Hamburg and Rabat, including an intriguing battle between Felix Auger-Aliassime and Andrey Rublev at 17:30 CET.
Check out the full schedules for Geneva, Strasbourg, Hamburg and Rabat via the links.
10:00 CET - Good morning and welcome to our coverage of today’s tennis!