Switzerland's Marco Chiudinelli, right and his partner Michael Lammer celebrate after they won their Davis Cup World Group play-off first round doubles tennis match against Nenad Zimonjic and Filip Krajinovic of Serbia, in Novi Sad, Serbia, Saturday, Feb. 1, 2014. Chiudinelli and Lammer  won the match and gave Switzerland a 2-1 lead. (AP Photo/Darko Vojinovic)

Serbia Switzerland Davis Cup Tennis

Switzerland's Marco Chiudinelli, right and his partner Michael Lammer celebrate after they won their Davis Cup World Group play-off first round doubles tennis match against Nenad Zimonjic and Filip Krajinovic of Serbia, in Novi Sad, Serbia, Saturday, Feb. 1, 2014. Chiudinelli and Lammer won the match and gave Switzerland a 2-1 lead. (AP Photo/Darko Vojinovic)

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