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PERTH, AUSTRALIA - JANUARY 06: Alexander Zverev of Germany a forehand to Dan Evans of Great Britain plays in the men's singles match during day six of the 2017 Hopman Cup at Perth Arena on January 6, 2017 in Perth, Australia. (Photo by Paul Kane/Getty Images)

PERTH, AUSTRALIA - JANUARY 06:  Alexander Zverev of Germany  a forehand to Dan Evans of Great Britain plays in the men's singles match during day six of the 2017 Hopman Cup at Perth Arena on January 6, 2017 in Perth, Australia.  (Photo by Paul Kane/Getty Images)