David lost in two 6:4 6:1. Untill 4:4 of the first set I had great hopes because his serve was looking great, but then his serve went to the bad side. I think he needs to get more match practice, better timing and a good serve. Besides that Melzer was on fire. But I can't say anything for the second set as long I didn't see it completely. This were only my first impressions and thoughts.
David was not ready for full match with athletic Melzer, he was just tired in the end of first set...
And yes: "Besides that Melzer was on fire."
Hope after couple of tournaments David will get his form back