Karolina Pliskova advanced to the quarterfinals of the Tianjin Open with a comfortable win over Polona Hercog.
The No. 1 seed defeated Hercog 6-1, 6-2 on Wednesday to progress to the last eight.
Liu Fangzhou
The world No. 6 could potentially face compatriot Barbora Krejcikova in the next round, if she can get past Great Britain's Katie Boulter.
Aryna Sabalenka
Fourth seed Aryna Sabalenka also progressed into the quarterfinals without losing a set against world No. 84 Magda Linette.
Petra Martic
The Belarusian won the match 6-1, 6-3 in one hour and 13 minutes of play.
No. 5 seed Su-Wei Hsieh also managed to advance to the next stage with a victory over Veronika Kudermetova, recovering from losing the second set to win 6-2, 2-6, 6-2.
Su-Wei Hsieh
Sixth seed Petra Martic recovered from losing the first set to comeback and progress to the last eight with a 1-6, 6-0, 6-1 victory over China's Fangzhou Liu.