Top seed Johanna Konta is first on Centre Court as the quarterfinals of the Aegon Open begin.
WTA Staff

All courts start at 11am

CENTRE COURT

Johanna KONTA (GBR) [1] v Ashleigh BARTY (AUS)

Donna VEKIC (CRO) v Maria SAKKARI (GRE)

Magdalena RYBARIKOVA (SVK) v [Q] Kristie AHN (USA)

Lucie SAFAROVA (CZE) [5] v Tsvetana PIRONKOVA (BUL)

COURT 1

After 2 Men's Singles

CHAN Hao-Ching (TPE) / Casey DELLACQUA (AUS) [3] v Johanna KONTA / Yanina WICKMAYER (BEL)

COURT 2

Jocelyn RAE (GBR) / Laura ROBSON (GBR) v Darija JURAK (CRO) / Anastasia RODIONOVA (AUS) [2]

KEY FACTS

This will be the first time Johanna Konta and Ashleigh Barty have played each other.

Lucie Safarova and Tsvetana Pironkova have met five times before - but never on grass.

This is the first time Magdalena Rybarikova and Kristie Ahn have played each other.