Martina Navratilova her U.S. citizenship nor does she plan to do so, and that reclaiming Czech nationality was not politically motivated. Navratilova was born Martina Šubertová in Prague, Czechoslovakia. Her parents divorced when she was three, and her mother, an accomplished gymnast, tennis player, and ski instructor, moved the family to Řevnice. In 1962, her mother Jana married Miroslav Navrátil, who became her first tennis coach. Martina then took the name of her stepfather (adding the feminine suffix "ová"), thus becoming Martina Navrátilová (). Her father, Mirek (officially Miroslav Subert), was a ski instructor and remarried and divorced. When she was eight,
Martina Navratilova in September 1982, an acute attack of toxoplasmosis "contributed to Martina Navratilova's defeat during the United States Open tennis tournament", in which No. 1 seed Navratilova unexpectedly lost to No. 7 seed Pam Shriver in the quarterfinal round. (Shriver—Navratilova's doubles partner in the same tournament—subsequently lost to No. 5 seed Hana Mandlíková in the semifinal. Mandlíková was then defeated in the final by Navratilova's longtime rival, No. 2 seed Chris Evert.) By late October, Navratilova had "apparently recovered". On April 7, 2010, Navratilova announced that she was being treated for breast cancer. A routine mammogram in January 2010 revealed that