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BIRMINGHAM, ENGLAND - MARCH 04: Kei Nishikori of Japan runs to play a forehand in his singles match against Daniel Evans of Great Britain during day one of the Davis Cup World Group first round tie between Great Britain and Japan at Barclaycard Arena on March 4, 2016 in Birmingham, England. (Photo by Clive Brunskill/Getty Images)

BIRMINGHAM, ENGLAND - MARCH 04:  Kei Nishikori of Japan runs to play a forehand in his singles match against Daniel Evans of Great Britain during day one of the Davis Cup World Group first round tie between Great Britain and Japan at Barclaycard Arena on March 4, 2016 in Birmingham, England.  (Photo by Clive Brunskill/Getty Images)