Martina Hingis (born 30 September 1980) is a retired Swiss professional tennis player who spent a total of 209 weeks as World No. 1. She won five Grand Slam singles titles . 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. Hingis set a series of "youngest-ever" records before ligament injuries in both ankles forced her to withdraw temporarily from professional tennis in 2002 at the age of 22.
9/3/14 #11-Seed Flavia Pennetta def. in the QFs 3-6, 2-6 by World #1 Serena Williams in their night-time match in Arthur Ashe Stadium. The last time both players in the QFs were over 32 yrs of age was in 1989. Flavia is still alive in the Women's Doubles with partner & WTT Washington Kastle Martina Hingis.