Fourth round matches bottom half of the draw,
No 7 Petra Kvitova vs Zhang Shaui
Petra has won 3 of their five previous matches,they have split their two prior matches on clay.If Petra wins this match she will return to the WTA Top Ten (currently ranked 11).
(4) Sofia Kenin vs Fiona Ferro,Kenin won their only previous meeting on clay,in Charleston qualifying in 2017.
Sofia is in the RG fourth round for the second straight year,joins Petra as the only two players to have made at least the 4th rd at all of this year's GS events.
(30) Ons Jabeur,2011 RG junior singles winner, vs Danielle Collins is seeking her second GS q/final.Earlier this year,she made history at the AO becoming the first Arab woman to reach the final eight of a GS event.
Laura Siegemund vs Paula Badosa both have reached the fourth rd of a GS for the first time,at WTA level,having split their two previous meetings at ITF challenger events.