The way this draw shook up is bulls#it. Roger's back does seem to be better than Montreal, with this draw he'll need to be going 100% to win #20. Saying that I can't wait!
Even with his back problem, he can do 100% for one match. Remember last year's Wimbledon? He won against Cilic despite wonky knees.
It's gonna be a problem if he has to play 100% in back to back to back matches. Which he will have to, considering this is a slam, and his draw.