Baghdatis seems to be slightly injured :
Defending champion and tournament No. 2 seed Marcos Baghdatis has withdrawn from the International Sydney event in Australia with a groin injury. Sustaining the groin injury during a practice session late last week, Baghdatis remains entered in next weeks’ Australian Open.
“It’s been four days I have pain,” admitted Baghdatis. I don’t want to risk too much by going in the match and making it worse, so I took the decision today with my team not to participate here.”
so Del Potro has a real chance to go in third round if Baghdatis is not at 100%,
I think Del Potro with a little luck can go in fourth round :