Kazakhstan

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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)

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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)