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SYDNEY, AUSTRALIA - SEPTEMBER 16: Bernard Tomic of Australia (L) talks to Captain of Australian Lleyton Hewitt (R) in his singles match against Jozef Kovalik of Slovakia during the Davis Cup World Group playoff between Australia and Slovakia at Sydney Olympic Park Tennis Centre on September 16, 2016 in Sydney, Australia. (Photo by Matt King/Getty Images)

SYDNEY, AUSTRALIA - SEPTEMBER 16:  Bernard Tomic of Australia (L) talks to Captain of Australian Lleyton Hewitt (R) in his singles match against Jozef Kovalik of Slovakia during the Davis Cup World Group playoff between Australia and Slovakia at Sydney Olympic Park Tennis Centre on September 16, 2016 in Sydney, Australia.  (Photo by Matt King/Getty Images)