Germany will be without Angelique Kerber as they look to preserve their Fed Cup World Group place against Latvia this weekend.
Sascha Bajin, the WTA's Coach of the Year for 2018 following his work with Naomi Osaka, has been hired by Kristina Mladenovic.
In a Bogota Open final between two rising stars, 17-year-old Amanda Anisimova outlasted Astra Sharma on Sunday.
Polona Hercog won a back-and-forth contest against Iga Swiatek to win the Ladies Open Lugano.
Lara Arruabarrena, the 2012 Bogota Open champion, was unable to prevent the in-form Astra Sharma from reaching her first career final.
Kristyna Pliskova was blown away by 17-year-old Pole Iga Swiatek, who stands on the brink of her first WTA Tour title.
Amanda Anisimova won the battle of the 17-year-olds in Bogota, where she outlasted wildcard Maria Camila Osorio Serrano in the quarters.
Kristyna Pliskova proved a step too far for Svetlana Kuznetsova as the Czech reached the last four of the Ladies Open Lugano.
Lara Arruabarrena – who won the tournament for her first title in 2012 – prevailed 7-6 (7-4) 6-1 to reach the Bogota Open quarters.
For the second time in as many matches at the Ladies Open Lugano, Svetlana Kuznetsova came from a set down to progress.