Geneva

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Stanislas Wawrinka, of Switzerland, reacts after winning a break game against to Mikhail Kukushkin, of Kazakhstan, during the third single match of the tennis Davis Cup World Group quarterfinal between Switzerland and Kazakhstan, in Geneva, Switzerland, Sunday, April 6, 2014. (AP Photo/Keystone,Salvatore Di Nolfi)

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Stanislas Wawrinka, of Switzerland, shouts after losing a game against to Mikhail Kukushkin, of Kazakhstan, during the third single match of the tennis Davis Cup World Group quarterfinal between Switzerland and Kazakhstan, in Geneva, Switzerland, Sunday, April 6, 2014. (AP Photo/Keystone,Salvatore Di Nolfi)

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Mikhail Kukushkin, of Kazakhstan, returns a ball to Stanislas Wawrinka, of Switzerland, during the third single match of the tennis Davis Cup World Group quarterfinal between Switzerland and Kazakhstan, in Geneva, Switzerland, Sunday, April 6, 2014. (AP Photo/Keystone,Salvatore Di Nolfi)

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Stanislas Wawrinka, of Switzerland, returns a ball to Mikhail Kukushkin, of Kazakhstan, during the third single match of the tennis Davis Cup World Group quarterfinal between Switzerland and Kazakhstan, in Geneva, Switzerland, Sunday, April 6, 2014. (AP Photo/Keystone,Salvatore Di Nolfi)

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Switzerland's Roger Federer, left, next to his doubles partner Stanislas Wawrinka, right, returns the ball to Kazakhstan's Aleksandr Nedovyesov, and Andrey Golubev, during their doubles match of the tennis Davis Cup World Group quarterfinal match between Switzerland and Kazakhstan, in Geneva, Switzerland, Saturday, April 5, 2014.(AP Phtoo/Keystone,Salvatore Di Nolfi)

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Switzerland's Roger Federer, left, speaks with his doubles partner Stanislas Wawrinka, right, during their doubles match of the Davis Cup World Group Quarterfinal match between Switzerland and Kazakhstan in Geneva, Switzerland, Saturday, April 5, 2014. (AP Photo/Keystone,Salvatore Di Nolfi)

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Kazakhstan's Andrey Golubev, left, watched by his doubles partner Aleksandr Nedovyesov, right, returns the ball to Switzerland's Roger Federer and Stanislas Wawrinka, during their doubles match of the tennis Davis Cup World Group quarterfinal match between Switzerland and Kazakhstan in Geneva, Switzerland, Saturday, April 5, 2014. (AP Photo/Keystone,Salvatore Di Nolfi)

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Switzerland's Stanislas Wawrinka, front left, watched by his doubles partner Roger Federer, front right, returns the ball to Kazakhstan's Aleksandr Nedovyesov, back right, and Andrey Golubev,during their doubles match of the tennis Davis Cup World Group quarterfinal match between Switzerland and Kazakhstan, in Geneva, Switzerland, Saturday, April 5, 2014.(AP Phtoo/Keystone,Salvatore Di Nolfi)