I am beginning to see a trend with Novak Djokovic. Of course it is too early to conclude but it seems to me as soon as he does something big in a major, he has a slump of sorts. The indoor season last year is a case in point. Now it has repeated after the fantastic win at AO. Is it a sign of things to come. Will he be able to sustain his motivation over long periods of time? It concerns me to say the least.