Pablo Andujar of Spain, returns the ball to Rafael Nadal, of Spain, during a semifinal match at the Rio Open tennis tournament in Rio de Janeiro, Brazil, Saturday, Feb. 22, 2014. (AP Photo/Leo Correa)
Alexandr Dolgopolovof Ukraine returns the ball to David Ferrer of Spain at the Rio Open tennis tournament in Rio de Janeiro, Brazil, Saturday, Feb. 22, 2014. (AP Photo/Leo Correa)
David Ferrer of Spain returns the ball to Alexandr Dolgopolov of the Ukraine at the Rio Open tennis tournament in Rio de Janeiro, Brazil, Saturday, Feb. 22, 2014. (AP Photo/Leo Correa)
Rafael Nadal, of Spain, returns the ball to Pablo Andujar, of Spain, during a semifinal match at the Rio Open tennis tournament in Rio de Janeiro, Brazil, Saturday, Feb. 22, 2014. (AP Photo/Leo Correa)
Rafael Nadal, of Spain, returns the ball to Pablo Andujar, of Spain, during a semifinal match at the Rio Open tennis tournament in Rio de Janeiro, Brazil, Saturday, Feb. 22, 2014. (AP Photo/Leo Correa)