Draw for Serbia v USA Davis Cup tie?

Question

What’s the draw for the first round Davis Cup tie between Serbia and USA? Who will play the first singles rubber?

Answer 1

The draw (in order of play) is:
Viktor Troicki (SRB) v John Isner (USA)
Novak Djokovic (SRB) v Sam Querrey (USA)
Janko Tipsarevic/Nenad Zimonjic (SRB) v Bob Bryan/Mike Bryan (USA)
Novak Djokovic (SRB) v John Isner (USA)
Viktor Troicki (SRB) v Sam Querrey (USA)