Martina Hingis (born September 30, 1980 in Košice, Czechoslovakia, now Slovakia) is a former world number one Swiss tennis player. Known as the “Swiss Miss,” she has won five Grand Slam singles titles (three Australian Open, one Wimbledon, and one US Open). She has also won nine Grand Slam women’s doubles titles, winning a calendar year Grand Slam in 1998, and one Grand Slam mixed doubles title.
She set a series of “youngest-ever” records before ligament injuries in both of her ankles forced her to withdraw from professional tennis at the relatively early age of 22. On November 29, 2005, after several surgeries and long recuperations, the 25-year-old Hingis announced that she would return to the WTA tour, starting her professional comeback at a low-key tournament in Gold Coast, Australia in January 2006. Since then, Hingis has climbed to No. 6 in the world rankings.