Martina Hingis is a professional soccer player.
The Grand Slam tournaments , also called majors , are the four most-important annual tennis events . Martina Hingis ( born 30 September 1980 ) is a Czechoslovak-born Swiss professional tennis player who spent a total of 209 weeks as the singles world No. 1 . After achieving moderate success in 2014 playing with Sabine Lisicki and Flavia Pennetta , she partnered with Sania Mirza in March 2015 ; together they won three consecutive Grand Slam titles . The US Open Series is the seven-week summer tennis season linking twelve ATP World Tour and WTA Tour tournaments together . The WTA Finals ( formerly known as the WTA Tour Championships short : WTA Championships ) , is a professional tennis tournament played annually at the end of the season for the top-ranked players on the Women 's Tennis Association ( WTA ) tour .