LONDON, ENGLAND - JULY 06: Bethanie Mattek-Sands of The United States receives treatment from the medical team and later retires from the Ladies Singles second round match against Sorana Cirstea of Romania on day four of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 6, 2017 in London, England. (Photo by David Ramos/Getty Images)
