Personally (although i do admit i am a complete pesimist) i dont think he has a chance, but i wish the best of luck to him as i would love to see him go further!
What time is he playing?
You shouldn't be so doubtful. Your forgetting that he cruised past Stefenek in Wimbledon with straight sets and he was 14th in the entry system at the time. Hes playing 0730 BST
Andy Murray is an inspiration to every junior tennis player in the country. He's achieved so much in very little time and deserves all the credit he gets.
One thing i have noticed, is that with Andy's two handed backhand he struggles to get to the lower balls, becaus eit doesn't allow as much reach as i one hander. His slice is excellent though (which is really hard if you're a double handed backhander. i am!). He should take a few more small steps to fine tune his positioning and then a big final step to initiate his forward leg transfer.
The thing to watch with Robby Ginepri, is that he has a really fast serve. i think he's in the same league as Andy Roddick.
We all know by now that Andy Murray is a pro when it comes to mind over matter- so shouldnt suffer mentally from this next match. And his fitness has improved a lot in the last three months so cramping shouldn't be a problem.
But lets not get too hyped up. He is still young and has years to improve and win thousands of tennis matches in the future. What is unfair to him, is all this attention from the press he's getting and they're slating him when he looses a match and acts like its expected of him to win and if he looses theres gotta be something wrong.
Whatever happens tomorrow morning, i just hope the media don't hassle him too much. It's not nice playing under pressure.