CENTRE COURT - 2:00 pm start
Lara ARRUABARRENA (ESP) / Kaitlyn CHRISTIAN (USA) vs  Lucie HRADECKA (CZE) / Ekaterina MAKAROVA (RUS)
CENTRE COURT - Not Before 5:00 pm
HSIEH Su-wei (TPE) vs  Petra KVITOVA (CZE)
CENTRE COURT - Not Before 7:00 pm
 Elina SVITOLINA (UKR) vs Belinda BENCIC (SUI)
 HSIEH Su-wei (TPE) / Barbora STRYCOVA (CZE) vs  CHAN Hao-ching (TPE) / Latisha CHAN (TPE)
By virtue of making the semifinals, Petra Kvitova will overtake Naomi Osaka for the No.1 position in the Porsche Race to Shenzhen on Monday.
Kvitova has defeated Hsieh Su-wei in straight sets in all of their three previous meetings. Their most recent encounter was in the round of 16 at the Sydney International earlier this year, which Kvitova won 7-6(2), 6-2.
"Definitely [Hsieh is] a tough and tricky opponent," Kvitova told the press, following her quarterfinal win over Viktoria Kuzmova. "I played her in Sydney in a really tough match. Will be probably some rallies tomorrow, and I need to be ready for every shot what she's going to bring to the game."
Two-time defending Dubai champion Elina Svitolina and Belinda Bencic have only played once before, at Charleston in 2014, which Bencic won in three sets.
These are the first back-to-back Top 10 wins for Bencic since 2015 Tokyo, where she beat No.8 Garbiñe Muguruza in the quarterfinals and No.6 Caroline Wozniacki in the semifinals, before falling to No.13 Agnieszka Radwanska in the final.
Hsieh also claimed back-to-back Top 10 wins in the last two rounds, eliminating No.7 Angelique Kerber in the round of 16 and No.5 Karolina Pliskova in the quarterfinals. Those were Hsieh's fourth and fifth career Top 10 wins -- three of those coming in the first two months of this season.
Former doubles World No.1 Hsieh is also still active in the doubles draw, paired with Barbora Strycova. Hsieh reached the Dubai final last year partnering Peng Shuai.
Chan Hao-ching was one of the women who beat Hsieh and Peng in the doubles final last year (partnering Yang Zhaoxuan). Chan and her sister Latisha will now face Hsieh and Strycova in the semifinals.