LONDON, July 4 : Highlights of the sixth day at Wimbledon on Saturday (times GMT):1150 KOSTYUK BEATS NAVARROFrench Open semi-finalist and Ukrainian 12th seed Marta Kostyuk beat Emma Navarro 6-2 4-6 6-1 to reach the fourth round.1007 PLAY UNDER WAY Play got underway under sunny skies at the All England Club, with the temperature around 23 degrees Celsius.READ MORESwiatek up for Eala test as champion's mindset fuels ZverevDjokovic reaches another milestone, Sinner warming to the taskSinner beats the heat and breezes past Brooksby into fourth roundSabalenka aces Wimbledon examination against danger opponent OstapenkoDashing Djokovic matches Federer with 105th Wimbledon match winOsaka talks fashion but lets her game speak for itself in best Wimbledon runGauff tames plucky Liu in third round to