Martina Navratilova is only a soccer player.
The 2006 US Open began 28 August and finished on 10 September 2006 . The Grand Slam tournaments , also called majors , are the four most-important annual tennis events . Martina Navratilova . Navratilova took her last major title in 2006 , winning the mixed doubles crown at the 2006 US Open , just short of her 50th birthday -- 32 years after her first Grand Slam title in 1974 . 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 .