Martina Hingis

Martina Hingis (born 30 September 1981 in Ko­ice, Slovakia, then Czechoslovakia) is a Swiss former professional tennis player who spent a total of 209 weeks as World No. 1. She won five Grand Slam singles titles (three Australian Opens, one Wimbledon, and one US Open). She also won nine Grand Slam women’s doubles titles, winning a calendar year doubles Grand Slam in 1998, and one Grand Slam mixed doubles title.