It's a shame there's an international break before the derby - means both sets of players might be slightly jaded so I see Mourinho becoming conservative in his set-up at some point in the game (maybe when it's equal in the second half, he might try to get a draw rather than push for a win whereas Pep will continue to go forward). Not taking into account potential injuries to players, the build-up to the game might be the only exciting aspect!