Motherhood fuels Pironkova's dream run at US Open

Pironkova has not seen her son in two weeks and the tearful Bulgarian dedicated her astonishing US Open run to her two-year-old after she surprised the field by advancing to her first ever quarterfinal.","content":"Unseeded Tsvetana Pironkova has not seen her son in two weeks and the tearful Bulgarian dedicated her astonishing US Open run to her two-year-old after she surprised the field by advancing to her first ever quarterfinal in New York...