Kazakhstan's Aleksandr Nedovyesov, left, and his doubles partner Andrey Golubev, right, celebrate after beating Switzerland's doubles 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. 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)