Two-time grand slam champion Garbine Muguruza announced her retirement on Saturday, after stepping back from tennis for the last year. The former world No. 1 had previously announced her intention to spend more time with her family, bringing an end to a career in which she won the 2016 French Open and 2017 Wimbledon title. . . . #tennis #garbinemuguruza #spain (📸 Angel Martinez/Getty Images)