Geneva

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Switzerland's Stanislas Wawrinka, right, watched by his doubles partner Roger Federer, left, left, 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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Roger Federer, of Switzerland, celebrates after beating Mikhail Kukushkin of Kazakhstan during the second single match of the Davis Cup World Group Quarterfinal match between Switzerland and Kazakhstan in Geneva, Switzerland, Friday, April 4, 2014. (AP Photo/Keystone, Salvatore Di Nolfi)

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Roger Federer of Switzerland serves a ball to Mikhail Kukushkin of Kazakhstan during the second single match of the Davis Cup World Group Quarterfinal match between Switzerland and Kazakhstan in Geneva, Switzerland, Friday, April 4, 2014. (AP Photo/Keystone, Salvatore Di Nolfi)

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Andrey Golubev of Kazakhstan returns a ball to Stanislas Wawrinka of Switzerland during the first single match of the Davis Cup World Group quarterfinal match between Switzerland and Kazakhstan, in Geneva, Switzerland, Friday, April 4, 2014. (AP Photo/Keystone, Salvatore Di Nolfi)

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Stanislas Wawrinka of Switzerland reacts after losing a point against Andrey Golubev of Kazakhstan during the first single match of the Davis Cup World Group quarterfinal match between Switzerland and Kazakhstan, in Geneva, Switzerland, Friday, April 4, 2014. (AP Photo/Keystone, Salvatore Di Nolfi)