Martina Hingis (pronounced: hɪŋˈɡɪs) (born September 30, 1980 in Košice, Slovakia) is a former tennis player and World No. 1. Known as the "Swiss Miss", she won five Grand Slam singles titles (three Australian Open, one Wimbledon, and one US Open) before her retirement on November 1, 2007.
She 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 spent a total of 209 weeks as World No. 1 and set a series of "youngest-ever" records before ligament injuries in both ankles forced her to temporarily 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. During her comeback Hingis climbed as high as No. 6 in the world rankings and won three titles (at the Tier I tournament in Rome, the Tier III tournament in Kolkata, India, and the Tier I tournament in Tokyo).