Ryan Harrison (USA) vs Joao Souza (BRA)
[WC] Evgeny Donskoy (RUS) vs [WC] Dusan Lajovic (SRB)
[Q] Aljaz Bedene (SLO) vs Martin Klizan (SVK)
BYE vs  David Nalbandian (ARG)
 Gilles Muller (LUX) vs Lukas Lacko (SVK)
[Q] Eduardo Schwank (ARG) vs Dudi Sela (ISR)
Ivan Dodig (CRO) vs Adrian Ungur (ROU)
BYE vs  Andreas Seppi (ITA)
A look at the complete draw you can take here.
It's not clear yet who will get the qualifier spot, of course but what is clear is that David has never played against any of the players in his quarter before. His first opponent in the second round could be Martin Klizan (#98), who recently won two clay-court Challengers in a row.
Going by the seeding, in a possible quarterfinal David could then face Ryan Harrison, currently ranked #58, whose last result was the quarterfinal he reached at Houston.
In the bottom quarter, there are a couple of players David has met before and some of them not too long ago, like Ivan Dodig and Adrian Ungur. I'd say that quarter is pretty much wide open but in case David gets to face second seed Andreas Seppi (#46) in a possible semifinal, he'll do so, knowing that he has won both of their two previous encounters.
As I wrote in my preview post, the weaker field was probably the reason David chose to play Belgrade. Now he also has a good draw, so here's hoping he can make the best of it.
The doubles draw is now out as well. David and Edu will play their first match against Jordan Kerr and Dudi Sela. After that, in what would be the quarterfinal, they could meet the second seeds Scott Lipsky and Rajeev Ram. The doubles draw you'll find here.