both are day matches.
i think there is a greater chance of an upset---if there is going to be one---with the cilic vs federer match.
not sure how that one is going to play out.
federer played a 5 setter late at night. body does not recover as fast as when you are in your 20's.
cilic basically has to play a match of his life to win. if he is up to the task then he just might find himself in the final.