Maria Sharapova  

Five-time Grand Slam winner Maria Sharapova, one of the world's most recognisable and highest-paid sportswomen, on February 26, announced her retirement at the age of 32. "Tennis - I'm saying goodbye," Sharapova said in an article for Vogue and Vanity Fair magazines. She added, "After 28 years and five Grand Slam titles, though, I'm ready to scale another mountain - to compete on a different type of terrain." Sharapova burst onto the scene as a supremely gifted teenager and won her Grand Slams before serving a 15-month ban for failing a drugs test at the 2016 Australian Open. The Russian former world number one's ranking is currently 373rd. Sharapova has hardly played in the past year because of long-standing shoulder problems. Watch this video to know more about her illustrious career.

Though her nerves on the tennis court don’t show it, it was a reminder of just how youthful the 20-year-old Osaka is. Not since Maria Sharapova was 19 in 2006 has the US Open had a younger women’s champion