Sania Mirza and Kirsten Flipkens were today knocked out of the women's doubles event of the Wimbledon Championships by Swiss great Martina Hingis and Yung-Jan Chan in London today. Seeded 13th, Mirza and her Belgian partner lost their third round match 2-6 4-6 to third seed rivals in 71 minutes.Sania, who has dropped to number seven in the world in the doubles chart, is still alive in the mixed doubles with Croatian partner Ivan Dodig. Sania had lost in pre-quarterfinals of the Australian Open and first round at the French Open, early this season. In the juniors competition, Mahak Jain advanced to thegirls singles second round after defeating Croatia's LeaBoskovic 7-6(4) 4-6 6-4.