The only two things, I didn't like from Delpo's game(I watched only a short video) was that he seems a bit clumpsy, but I'm sure that with the more matches he play, he'll get in better physical form.
The second thing is the low % of 1st serve in. It needs to be around 65-70%, so that Delpo would be able to win easier points.
I look forward to the match with Mayer. VAMOS!