Davis Cup

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Kei Nishikori of Japan reacts after getting a point against Frank Dancevic of Canada during their 1st round of Davis Cup World Group tennis in Tokyo, Sunday, Feb. 2, 2014. (AP Photo/Shizuo Kambayashi)

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Frank Dancevic of Canada returns the ball against Kei Nishikori of Japan during their 1st round of Davis Cup World Group tennis in Tokyo, Sunday, Feb. 2, 2014. (AP Photo/Shizuo Kambayashi)

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Kei Nishikori, center, of Japan signs autographs for fans after Japan's win over Canada at the 1st round of Davis Cup World Group tennis in Tokyo, Sunday, Feb. 2, 2014. (AP Photo/Shizuo Kambayashi)

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Argentina tennis fans wave an Argentine flag as they cheer for their team playing a Davis Cup doubles tennis match against Italy in Mar del Plata, Argentina, Saturday, Feb. 1, 2014. (AP Photo/Eduardo Di Baia)

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Italy's Simone Bolelli, right, returns the ball to Argentina's doubles team Horacio Zeballos and Eduardo Schwank as his teammate Fabio Fognini look on at left during their Davis Cup doubles match in Mar del Plata, Argentina, Saturday, Feb. 1, 2014. (AP Photo/Eduardo Di Baia)

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Switzerland's Michael Lammer, left, returns a ball as Marco Chiudinelli looks on during 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. (AP Photo/Darko Vojinovic)

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Switzerland's Michael Lammer, foreground returns a ball as his partner Marco Chiudinelli looks on, during 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. (AP Photo/Darko Vojinovic)

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Robin Haase reacts as team coach Jan Siemerink and Jean-Julien Rojer from the Netherlands, from left to right, discuss with the referee during their Davis Cup first round dobles match against Tomas Berdych and Radek Stepanek from the Czech Republic in Ostrava, Czech Republic, Saturday, Feb. 1, 2014. (AP Photo,CTK/Jaroslav Ozana) SLOVAKIA OUT