Britain's Johanna Konta was forced to withdraw from Wimbledon on Sunday after being identified as a close contact of a positive coronavirus case, the All England Club announced. The world number 31, a semi-finalist at the tournament in 2017, had been drawn to face Katerina Siniakova of the Czech Republic in her opener. The 30-year-old's place in the draw will be taken by lucky loser Wang Yafan of China. "The Referee's Office has advised that Johanna Konta has been withdrawn from the Ladies' Singles Draw, having been classified as a close contact of a positive test for COVID-19," said a statement from the All England Club. "In line with government legislation, Konta is required to spend 10 days in self isolation." dj/pb