Claim: Heather Watson plays the sport tennis.

Johanna `` Jo '' Konta -LRB- -LSB- ` kɒntə -RSB- born 17 May 1991 -RRB- is a British tennis player who represented Australia until 2012 . She has won three singles titles on the WTA tour , as well as 11 singles and four doubles titles on the ITF circuit in her career . Konta reached her best singles ranking of World number six on 8 May 2017 . She is the current British number one . Her doubles ranking peaked at No. 88 on 1 August 2016 .   Konta achieved a steep rise in her ranking from the spring of 2015 to late 2016 , climbing from 150 to inside the World 's top ten , thereby becoming the first Briton to be ranked amongst the WTA 's top ten since Jo Durie over 30 years previously . This period included her best Grand Slam result to date as she reached the semifinal of the 2016 Australian Open , a quarterfinal appearance at the Rio 2016 Summer Olympics and her maiden WTA title .   Born to Hungarian parents in Sydney , Australia , Konta moved to the UK when she was 14 . She switched her sporting allegiance from Australia to Great Britain after she became a British citizen in May 2012 .