Wow, tough draw. Glad he's seeded (#32) but he gets a tough draw anyway.
R1: Michael Berrer. The two traded hardcourt wins towards the end of last year in their H2H, GGL taking Bangkok and Berrer taking Vienna. Could go either way.
R2: Schwank or Mayer (L).
R3: Andy Murray. o_O
GGL would be lucky to make it to R3... heck, he'll be lucky to make it past R1.
Best of luck to GGL though!!