LONDON, ENGLAND - JUNE 25: Angelique Kerber of Germany in action during previews for Wimbledon Tennis 2016 at Wimbledon on June 25, 2016 in London, England. (Photo by Julian Finney/Getty Images)
LONDON, ENGLAND - JUNE 25: Angelique Kerber of Germany in action during previews for Wimbledon Tennis 2016 at Wimbledon on June 25, 2016 in London, England. (Photo by Julian Finney/Getty Images)