Teliana Pereira of Brazil returns the ball to Klara Zakopalova of the Czech Republic at the Rio Open tennis tournament in Rio de Janeiro, Brazil, Saturday, Feb. 22, 2014. (AP Photo/Leo Correa)

Brazil Rio Open Tennis

Teliana Pereira of Brazil returns the ball to Klara Zakopalova of the Czech Republic at the Rio Open tennis tournament in Rio de Janeiro, Brazil, Saturday, Feb. 22, 2014. (AP Photo/Leo Correa)

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