by dave g Here are the WTA DAy 4 matches:
Pegula 5 vs Vekic (WC)
Volynets [WC] vs Ostapenko 26
Mertens 22 vs Bucsa
Hunter (Q) vs Bencic 12
Keys 15 vs Parry (Q)
Kartal vs Navarro 20
Kostyuk 28 vs Townsend (Q)
Baptiste vs Rybakina 3
Andreeva 8 vs Sierra
Siniakova vs Fernandez 27
Samsonova 19 vs Krueger
Siegemund vs Svitolina 9
Muchova 13 vs Bondar
Ruzic vs Zheng 24
Sakkari 32 vs Tagger
Day (Q) vs Swiatek 2
by ptmcmahon Ostapenko 26