Coco Gauff advanced the quarter-finals of the China Open after Naomi Osakawas forced to pull out of the tournament with a back injury in Beijing.
Emma Raducanu reached her first quarter-final on grass on the WTA Tour at the Rothesay Open in Nottingham on Thursday.
WTA chairman Steve Simon will vacate his position as chief executive as the organisation undergoes a restructuring.
Following her third loss in a grand slam final at Wimbledon on Saturday, former WTA star Kim Clijsters offered words of wisdom for a distraught Ons Jabeur.
Elena Rybakina was crowned WTA Italian Open champion after Anhelina Kalininia retired in the second set of the final through injury in Rome.
The Madrid Open will go ahead without WTA stars Ons Jabeur and Karolina Pliskova, who have withdrawn due to injury.