Switzerland's Stanislas Wawrinka, right, speaks with his doubles partner Roger Federer, left, during their doubles match of the Davis Cup World Group Quarterfinal match between Switzerland and Kazakhstan  in Geneva, Switzerland, Saturday, April 5, 2014.  Roger Federer and Stanislas Wawrinka lost the doubles match to Andrey Golubev and Aleksandr Nedovyesov on Saturday, giving Kazakhstan a 2-1 lead over Switzerland in the Davis Cup quarterfinals. (AP Photo/Keystone,Salvatore Di Nolfi)

Switzerland Tennis Davis Cup

Switzerland's Stanislas Wawrinka, right, speaks with his doubles partner Roger Federer, left, during their doubles match of the Davis Cup World Group Quarterfinal match between Switzerland and Kazakhstan in Geneva, Switzerland, Saturday, April 5, 2014. Roger Federer and Stanislas Wawrinka lost the doubles match to Andrey Golubev and Aleksandr Nedovyesov on Saturday, giving Kazakhstan a 2-1 lead over Switzerland in the Davis Cup quarterfinals. (AP Photo/Keystone,Salvatore Di Nolfi)

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