Sport: Tennis

Defending champion Roger Federer became the second high-profile casualty at the Madrid Open.
World No 2 Maria Sharapova beat Sabine Lisicki 6-2, 7-5 to book her place in the quarterfinals of the Madrid Open.
Djokovic suffered a rare defeat in the second round on the Madrid Open after twisting his ankle.
Roger Federer made a winning return after a two-month absence from the court.
Maria Sharapova survived a sticky start to move into the second round of the WTA Madrid Open.
Chanel Simmonds hammered Ilze Hattingh at the Soweto Open.
Day four of the Soweto Open saw the two remaining South Africans crash out of the tournament.
The South Africans fared a bit better on day three of the Soweto Open on Wednesday at the Arthur Ash Tennis Complex.
South African tennis players Ruan Roelofse and Keith-Patrick Crowley both lost on day two of the Soweto Open on Tuesday.
Local favourite Rik de Voest led the way on Monday as South African players dominated the opening day of the singles draw at the Soweto Open men's tennis tournament.
Rafael Nadal claimed his 54th career title on Sunday, winning the Barcelona Open.
South African Davis Cup stalwart Rik De Voest seeks his first Soweto Open title.
Rafael Nadal kept alive his hopes of an eighth title at the Barcelona Open on Saturday.
Wimbledon is increasing prize money by 40% this year with men's and women's singles champions receiving £1.6 million.
The Soweto Open returns next week after a one-year break and will be held at the Arthur Ash Tennis Complex from April 29 to May 4.
Roberta Vinci secured Italy's fifth Fed Cup final appearance in eight years on Monday after battling past Lucie Safarova of the Czech Republic.
Novak Djokovic beat Rafael Nadal to deny the Spaniard his ninth Monte Carlo title on Sunday.
Bernard Tomic's European clay court season got off to the worst possible start as the Australian went down 6-2, 6-4 to Alexandr Dolgopolov.
It's 10 years since the rankings didn't feature either Rafael Nadal or Roger Federer in the top two.
Seventh-seeded Paolo Lorenzi overpowered Austrian qualifier Gerald Melzer 6-2, 6-2 in the opening round of the ATP Tour's US Clay Court Championships.
Tennis South Africa announced on Wednesday that it has increased the Soweto Open's overall prize money from R1 million to R1.5 million.
Andy Murray's win in the Miami Masters has pushed him back up to second in the world rankings
Tomas Berdych has been forced to pull out of Czech Republic's Davis Cup quarterfinal clash with Kazakhstan next month
Five-time champion Serena Williams cruised into the WTA Miami final by steamrolling Agnieszka Radwanska on Thursday.
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