Czech Republic's Tomas Berdych serves the ball to Argentina's Carlos Berlocq during the Davis Cup semifinals tennis match in Buenos Aires, Argentina, Sunday, Sept. 16, 2012. (AP Photo/Eduardo Di ... more 

Czech Republic's Tomas Berdych serves the ball to Argentina's Carlos Berlocq during the Davis Cup semifinals tennis match in Buenos Aires, Argentina, Sunday, Sept. 16, 2012. (AP Photo/Eduardo Di Baia) less