South Africa

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Roger Federer, of Switzerland, serves to Kevin Anderson, of South Africa, during their quarterfinal match at the BNP Paribas Open tennis tournament on Thursday, March 13, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)

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Oscar Pistorius, left, listens to cross examination during his trial in court in Pretoria, South Africa, Thursday, March 13, 2014, Pistorius is charged with the shooting death of his girlfriend Reeva Steenkamp on Valentine's Day in 2013. (AP Photo/Themba Hadebe, Pool)

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Kevin Anderson, of South Africa, celebrates after winning a point against Stanislas Wawrinka, of Switzerland, during a fourth round match at the BNP Paribas Open tennis tournament, Wednesday, March 12, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)

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Stanislas Wawrinka, of Switzerland, returns a shot against Kevin Anderson, of South Africa, during a fourth round match at the BNP Paribas Open tennis tournament, Wednesday, March 12, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)

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Kevin Anderson, of South Africa, serves against Stanislas Wawrinka, of Switzerland, during a fourth round match at the BNP Paribas Open tennis tournament, Wednesday, March 12, 2014, in Indian Wells, Calif. (AP Photo/Mark J. Terrill)