Switzerland's Marco Chiudinelli, second from left and his partner Michael Lammer, right jubilate with Stanislas Wawrinka, left and Roger Federer after winning 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, second from left and his partner Michael Lammer, right jubilate with Stanislas Wawrinka, left and Roger Federer after winning 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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