Great Britain's Katie Boulter and Heather Watson (right) during day three of the Nature Valley Classic at Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Wednesday June 20, 2018. See PA story TENNIS Birmingham. Photo credit should read: Mike Egerton/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission Stock Photo

RMP44GYA–Great Britain's Katie Boulter and Heather Watson (right) during day three of the Nature Valley Classic at Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Wednesday June 20, 2018. See PA story TENNIS Birmingham. Photo credit should read: Mike Egerton/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission

EDITORIAL USE ONLY Britain's Heather Watson smiles as a seagull interrupts play in her match with Elena Vesnina of Russia during The Aegon International Tournament at Devonshire Park, Eastbourne, Southern England. June 20, 2016. Simon Dack / Telephoto Images Stock Photo

RMG73CH0–EDITORIAL USE ONLY Britain's Heather Watson smiles as a seagull interrupts play in her match with Elena Vesnina of Russia during The Aegon International Tournament at Devonshire Park, Eastbourne, Southern England. June 20, 2016. Simon Dack / Telephoto Images

Great Britain's Heather Watson during day one of the 2016 AEGON Classic at the Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Monday June 13, 2016. See PA story TENNIS Birmingham. Photo credit should read: Nigel French/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission, please contact PA Images for further info: Tel: +44 (0) 115 8447447. Stock Photo

RMG3NF5Y–Great Britain's Heather Watson during day one of the 2016 AEGON Classic at the Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Monday June 13, 2016. See PA story TENNIS Birmingham. Photo credit should read: Nigel French/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission, please contact PA Images for further info: Tel: +44 (0) 115 8447447.

RMG3NF65–Great Britain's Heather Watson during day one of the 2016 AEGON Classic at the Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Monday June 13, 2016. See PA story TENNIS Birmingham. Photo credit should read: Nigel French/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission, please contact PA Images for further info: Tel: +44 (0) 115 8447447.

Great Britain's Heather Watson (left) and Katie Boulter (right) during day four of the Nature Valley Classic at Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Thursday June 21, 2018. See PA story TENNIS Birmingham. Photo credit should read: Simon Cooper/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission Stock Photo

RMP4D7B5–Great Britain's Heather Watson (left) and Katie Boulter (right) during day four of the Nature Valley Classic at Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Thursday June 21, 2018. See PA story TENNIS Birmingham. Photo credit should read: Simon Cooper/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission

EDITORIAL USE ONLY Britain's Heather Watson plays a shot against Elena Vesnina of Russia in their first round match during The Aegon International Tournament at Devonshire Park, Eastbourne, Southern England. June 20, 2016. Simon Dack / Telephoto Images Stock Photo

RMG73CFF–EDITORIAL USE ONLY Britain's Heather Watson plays a shot against Elena Vesnina of Russia in their first round match during The Aegon International Tournament at Devonshire Park, Eastbourne, Southern England. June 20, 2016. Simon Dack / Telephoto Images

RMP4D79M–Great Britain's Heather Watson (left) and Katie Boulter (right) during day four of the Nature Valley Classic at Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Thursday June 21, 2018. See PA story tennis Birmingham. Photo credit should read: Simon Cooper/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission

RMG3NEMR–Great Britain's Heather Watson during day one of the 2016 AEGON Classic at the Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Monday June 13, 2016. See PA story tennis Birmingham. Photo credit should read: Nigel French/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission, please contact PA Images for further info: Tel: +44 (0) 115 8447447.

RMG73CKW–EDITORIAL USE ONLY Britain's Heather Watson plays a shot against Elena Vesnina of Russia in their first round match during The Aegon International Tournament at Devonshire Park, Eastbourne, Southern England. June 20, 2016. Simon Dack / Telephoto Images

RMG3NF64–Great Britain's Heather Watson during day one of the 2016 AEGON Classic at the Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Monday June 13, 2016. See PA story TENNIS Birmingham. Photo credit should read: Nigel French/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission, please contact PA Images for further info: Tel: +44 (0) 115 8447447.

RMG3NEMK–Great Britain's Heather Watson during day one of the 2016 AEGON Classic at the Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Monday June 13, 2016. See PA story tennis Birmingham. Photo credit should read: Nigel French/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission, please contact PA Images for further info: Tel: +44 (0) 115 8447447.

RMG3NF66–Great Britain's Heather Watson during day one of the 2016 AEGON Classic at the Edgbaston Priory, Birmingham. PRESS ASSOCIATION Photo. Picture date: Monday June 13, 2016. See PA story TENNIS Birmingham. Photo credit should read: Nigel French/PA Wire. RESTRICTIONS: Editorial use only, no commercial use without prior permission, please contact PA Images for further info: Tel: +44 (0) 115 8447447.