1. Andy Murray a Dark Horse? - Possibly, he's had his best clay court performance this year than any other year in his career. However, that doesn't qualify him in becoming a dark horse in a true sense. He'd have to have at least won a title to stand a chance. He might reach the QF if he gets an easy draw, but he's no threat to any of the biggest competitors.
2. Soderling- I think players below his rank are capable of KO him out early. He's not as solid as he was in the past. Too many problems. I have more respect for Ferrer as a top competitor in this tournament than him.
3. Del Potro- Why would his name even be brought up if he's banged up from injuries???
I think Ferrer, Melzer, and some other players are better brought up than an inconsistent Soderling who might not show up, a banged up Del Potro, and an unpredictable Murray.