In earlier matches, sixth seed Petra Kvitova of the Czech Republic and eighth seed Petra Martic from Croatia also advanced into women's last 16. Enditem
Elsewhere, sixth seed Matteo Berrettini of Italy, tenth seed Andrey Rublev of Russia and Australia's Alex De Minaur all won their third round matches. Enditem
With the running calendar slowly resuming amid global COVID-19 setbacks, WA's anti-doping watchdog Athletics Integrity Unit (AIU) is stepping up measures to increase testing of athletes with Kenya, a long distance running powerhouse key in their testing program.
Williams defeated Russia's Margarita Gasparyan 6-2, 6-4 while Kenin needed an hour and 22 minutes to maneuver past Canadian youngster Leylah Fernandez 6-4, 6-3.
Then in the third set, Williams was rarely troubled by her rival en route to victory.
Thursday saw some rumors in the press that the player was considering a U-turn to see out the remaining year of his contract, but Jorge Messi's communique implies there is no climb-down from the family.
In another third round clash, Australian Open champion Kenin had to weather a barrage of 35 winners coming from Jabeur's racquet, and stayed solid to break the Tunisian's serve three times, fighting her way to a 7-6 (4), 6-3 victory.
Ricciardo's teammate Esteban Ocon took eighth, with the second AlphaTauri of Daniil Kvyat and Perez rounding out the top ten.
"It's a very difficult competition as you can see. We followed the coach's guidance to keep the clean sheet. The draw is acceptable for us," said Shenhua midfielder Zhu Baojie.
Iran's match with Uzbekistan, previously set for September 7, has been rescheduled for October 8 in Tashkent's Bunyodkor Stadium.
The 2020 Women's World Cup is scheduled from November 8 to November 10.