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GLASGOW, UNITED KINGDOM - SEPTEMBER 19: Andy Murray celebrates with his brother Jamie Murray as they beat Lleyton Hewitt and Sam Groth of Austrailier to put Great Britain 2-1 up in the Davis Cup on September 19, 2015 in Glasgow, United Kingdom. (Photo by Steve Welsh/Getty Images)

GLASGOW, UNITED KINGDOM - SEPTEMBER 19: Andy Murray celebrates with his brother Jamie Murray as they beat  Lleyton Hewitt and Sam Groth of Austrailier  to put Great Britain 2-1 up in the Davis Cup on September 19, 2015 in Glasgow, United Kingdom. (Photo by Steve Welsh/Getty Images)