In the next round Andy will play either Philipp Kohlschreiber or a qualifier. The other seeds in his half of the draw are Nishikori (4), Raonic (5) & Ferrer (7). The top seed is Roger the Lodger.
Ah, I hadn't realised that Djokovic had withdrawn from Madrid. I read that this is apparently to help save himself more for the French Open ( given I assume he risked playing, i.e. winning, too many matches in Madrid and Rome ), but he himself has been rather quiet.
Given they had so much time off court last week because of the rain delays, both players should still be reasonably fresh, if not having enough prep time in the differing conditions in Madrid.
This could be a long night. If the Stosur v Kuznetsova match goes to 3 sets, it could be well beyond midnight before Andy even gets on court. So if today's match is anything like the final two days ago, they will still be playing when the sun comes up.