Tennis Tracker: Alexandrova and Kostyuk through in Seoul, Jabeur ends season due to injury
20:24 CET - That'll be all from the Tennis Tracker today. Tune back in tomorrow morning for results from Hua Hin and Seoul!
17:37 CET - World No.1 and recent US Open champion Jannik Sinner (23) has hired Novak Djokovic's (37) former fitness coach Marco Panichi weeks after being cleared of doping following two positive tests for a banned substance.
16:34 CET - Some significant news on the WTA Tour, with three-time major finalist Ons Jabeur (30) bringing an end to her 2024 season due to an ongoing shoulder injury.
The popular Tunisian is targeting a return at the Australian Open early next year.
13:30 CET - The final result of the day has arrived in Hua Hin, with second seed Katerina Siniakova (28) battling through a tough first set to defeat Arina Rodionova (34) 7-5, 6-1.
13:18 CET - Fifth seed Marta Kostyuk (22) has made light work of Arantxa Rus (33) in Seoul, winning 6-3, 6-1 in impressive fashion.
11:52 CET - Ekaterina Alexandrova (29) survived a bit of a scare from Varvara Lepchenko (38), but in the end, claimed a 7-5, 3-6, 6-0 win in Seoul.
11:08 CET - American Katie Volynets (22) has battled past Clara Tauson (21) 7-6(2), 4-6, 6-3 in a three-hour contest to move through to the next round in Hua Hin.
09:42 CET - Eighth seed Yue Yuan (25) is through in Seoul after coming from behind to defeat Elena Gabriela Ruse (26) 4-6, 6-2, 6-2. Veronika Kudermetova (27) and Heather Watson (32) have also progressed in South Korea.
Meanwhile, in Hua Hin, Xiyu Wang (23), Varvara Gracheva (24) and Laura Siegemund (36) are all into the next round after straight-set wins.
09:18 CET - Magdalena Frech (26) captured her maiden WTA Tour title overnight with a hard-fought 7-6(5), 6-4 victory over Olivia Gadecki (22) in the Guadalajara final.
Read more about Frech's triumph here.
09:10 CET - Good morning and welcome to our coverage of today's tennis action!