Gael Monfils reached the quarter-finals of the Moselle Open with a comfortable win over Poland's Michal Przysiezny.
Andy Murray will play for Great Britain in the Davis Cup match against the United States - whatever happens in Scotland.
Caroline Wozniacki scraped past Jarmila Gajdosova to reach the last eight at the Toray Pan Pacific Open.
Second seed Alice Cornet is through to the semi-finals of the Guangzhou Open after beating Hsieh Su-wei of Chinese Taipei.
Wildcard Maria Kirilenko fought back from a set down to claim the scalp of third seed Klara Koukalova at the Korea Open.
Two-time grand slam winner Li Na is set to announce retirement from tennis, according to reports.
Andy Murray has declared his support for the Yes campaign in the independence referendum.
Angelique Kerber came through a tough test against Elina Svitolina to reach the Toray Pan Pacific Open quarter-finals.
Agnieszka Radwanska and Karolina Pliskova both booked their places in the quarter-finals of the Kia Korea Open.
Wang Yafan was made to work hard for her victory over Petra Martic at the Guangzhou International Women's Open.