Tennis: Davis Cup result: Serbia 2 USA 1

Results from the second day of the Davis Cup World Group quarter-final tie between the United States and Serbia on Saturday:

USA 1 Serbia 2

Novak Djokovic (SRB) bt John Isner (USA) 7-6 (7/5), 6-2, 7-5

Sam Querrey (USA) bt Viktor Troicki (SRB) 7-6 (7/1), 3-6, 4-6, 6-1, 6-4

Saturday

Nenad Zimonjic/Ilija Bozoljac (SRB) bt Bob Bryan/Mike Bryan (USA) 7-6 (7/5), 7-6 (7/1), 5-7, 4-6, 15-13

Sunday

Sam Querrey (USA) v Novak Djokovic (SRB)

John Isner (USA) v Viktor Troicki (SRB)

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